516  
FXUS07 KWBC 312050  
PMD30D  
PROGNOSTIC DISCUSSION FOR MONTHLY OUTLOOK  
NWS CLIMATE PREDICTION CENTER COLLEGE PARK MD  
300 PM EST WED DEC 31 2025  
 
30-DAY OUTLOOK DISCUSSION FOR JAN 2026  
 
THE JANUARY 2026 MONTHLY TEMPERATURE AND PRECIPITATION OUTLOOKS ARE UPDATED  
CONSIDERING INPUT FROM THE CLIMATE PREDICTION CENTER (CPC) EXTENDED RANGE AND  
SUBSEASONAL OUTLOOKS, AND SHORTER-TERM (DAYS 1-7) FORECASTS OF PRECIPITATION  
FROM THE WEATHER PREDICTION CENTER (WPC). DYNAMICAL MODEL GUIDANCE FROM  
GEFSV12, ECMWF, AND CFSV2 FOR THE 6-10 DAY, WEEK 2, AND WEEKS 3-4 PERIODS,  
RECENT MONTHLY CFSV2 FORECASTS OF TEMPERATURE AND PRECIPITATION, AND  
EXPERIMENTAL MONTHLY FORECASTS OF TEMPERATURE AND PRECIPITATION FROM EXTENDED  
RUNS OF THE GEFSV12 AND ECMWF MODELS ARE UTILIZED. IMPACTS FROM BACKGROUND  
CLIMATE STATES, SUCH AS THE EL NINO SOUTHERN OSCILLATION (ENSO) ARE CONSIDERED.  
 
LA NINA IS CURRENTLY PRESENT, WITH EQUATORIAL SEA SURFACE TEMPERATURES (SSTS)  
REMAINING BELOW AVERAGE ACROSS THE CENTRAL AND EAST-CENTRAL PACIFIC OCEAN AND  
THE LATEST WEEKLY NIñO 3.4 INDEX REACHING -0.7 DEGREES C. WHILE THESE  
CONDITIONS HAVE PERSISTED SINCE SEPTEMBER 2025 AND REMAIN IN WEAK LA NINA  
TERRITORY, A TRANSITION TO ENSO-NEUTRAL IS MOST LIKELY DURING THE  
JANUARY-FEBRUARY-MARCH 2026 PERIOD WITH A 68% PROBABILITY. THE MADDEN-JULIAN  
OSCILLATION (MJO) IS EXPECTED TO REMAIN WEAK AND DISORGANIZED THROUGH EARLY  
JANUARY, AS DYNAMICAL MODELS FAVOR LITTLE TO NO REEMERGENCE OF COHERENT  
SUBSEASONAL ACTIVITY. MOST FORECASTS DEPICT THE MJO WITHIN THE UNIT CIRCLE AT  
LOW AMPLITUDE, AND ANY POTENTIAL RENEWED ACTIVITY LATER IN THE MONTH WOULD  
LIKELY OCCUR OVER THE WESTERN PACIFIC. GIVEN THIS UNCERTAINTY AND PREDICTED  
WEAK MJO SIGNALS, THE MJO IS NOT A SIGNIFICANT CONTRIBUTOR TO THE UPDATED  
FORECAST. WHILE LA NINA INFLUENCE IS EXPECTED, THE EVENT'S WEAKNESS ALLOWS  
TELECONNECTIONS TO BE POTENTIALLY OVERSHADOWED BY INTRA-MONTHLY VARIABILITY,  
INCREASING FORECAST UNCERTAINTY.  
 
A COMPLEX, TRANSIENT, AND UNCERTAIN HEIGHT PATTERN IS FORECAST DURING JANUARY.  
ALTHOUGH DYNAMICAL MODEL ENSEMBLE MEANS SHOW GOOD AGREEMENT FOR EARLY JANUARY,  
WITH TROUGHING OVER ALASKA, THE WEST COAST, AND THE EAST, AND WEAK POSITIVE  
HEIGHTS OVER THE CENTRAL CONTIGUOUS UNITED STATES (CONUS), MODEL SOLUTIONS  
QUICKLY DIVERGE. BY MID-MONTH, RIDGING DEVELOPS OVER ALASKA AND THE EAST WITH  
TROUGHING OVER THE WEST, AND THE PATTERN IS FORECAST TO SHIFT EASTWARD. WEEK  
3-4 DYNAMICAL MODEL FORECASTS WERE PREVIOUSLY MORE UNCERTAIN, BUT RECENT MODELS  
HAVE ALIGNED TO FAVOR RIDGING OVER ALASKA AND THE WESTERN U.S. AND TROUGHING  
OVER THE NORTHERN TIER AND NEW ENGLAND (WITH SOME DIFFERENCES IN POSITION AND  
STRENGTH OF HEIGHT ANOMALIES BETWEEN MODELS). OVERALL, THE TRANSIENT NATURE OF  
THIS PATTERN ADDS SIGNIFICANT UNCERTAINTY TO THE JANUARY OUTLOOK, PARTICULARLY  
FOR PRECIPITATION.  
 
MUCH OF THE CONUS IS FORECAST TO EXPERIENCE ABOVE-NORMAL TEMPERATURES IN EARLY  
JANUARY BEFORE A TRANSIENT MID-MONTH, LEADING TO RIDGING IN THE WEST AND  
TROUGHING IN THE NORTHEAST BY LATE JANUARY, WHICH MAY BRING COOLER TEMPERATURES  
TO THE NORTH AND EAST. THE JANUARY 2026 MONTHLY TEMPERATURE OUTLOOK DEPICTS A  
BROAD AREA OF FAVORED ABOVE-NORMAL TEMPERATURES ACROSS THE WESTERN, SOUTHERN,  
AND SOUTHEASTERN U.S., WITH THE HIGHEST PROBABILITIES OVER THE SOUTHWEST AND  
SOUTHERN PLAINS. CONVERSELY, BELOW-NORMAL TEMPERATURES ARE FAVORED FOR THE  
GREAT LAKES, NORTHEAST, AND MUCH OF CENTRAL, EASTERN, AND SOUTHEASTERN ALASKA.  
EQUAL-CHANCES (EC) OF ABOVE, BELOW, AND NEAR-NORMAL TEMPERATURES STRETCH FROM  
THE NORTHERN HIGH PLAINS THROUGH THE CENTRAL PLAINS AND INTO THE MID-ATLANTIC.  
COMPARED TO THE INITIAL OUTLOOK, ABOVE-NORMAL TEMPERATURE PROBABILITIES ARE  
EXPANDED TO COVER THE WESTERN THIRD OF THE CONUS. DESPITE THE MID-MONTH  
TRANSIENT PHASE THAT MAY BRING MILDER CONDITIONS TO THE WEST, STRONG MONTHLY  
MODEL AGREEMENT SUPPORTS ENHANCED PROBABILITIES FOR ABOVE-NORMAL TEMPERATURES.  
OVER THE SOUTHEAST, ABOVE-NORMAL TEMPERATURE PROBABILITIES ARE WEAKENED AND  
COMPRESSED SOUTHWARD AS UPDATED GUIDANCE SUGGESTS LATE-MONTH TROUGHING THAT MAY  
BRING COOLER TEMPERATURES TO THE NORTH AND EAST, AND POTENTIALLY FURTHER SOUTH,  
THOUGH THE POSITION OF THE TRANSITION BETWEEN ABOVE-NORMAL AND BELOW-NORMAL IS  
SOMEWHAT UNCERTAIN. BELOW-NORMAL PROBABILITIES ARE EXPANDED EASTWARD TOWARD THE  
NORTHEAST GIVEN TROUGHING IN THE SECOND HALF OF JANUARY. OVER ALASKA, A WEAK  
BELOW-NORMAL SIGNAL IS MAINTAINED BASED ON MONTHLY DYNAMICAL MODELS, DESPITE A  
MID-MONTH PERIOD OF RIDGING THAT MAY BRING TEMPORARY WARMTH.  
 
THE JANUARY 2026 MONTHLY PRECIPITATION OUTLOOK FAVORS ABOVE-NORMAL  
PRECIPITATION FROM THE NORTHWEST AND NORTHERN ROCKIES TO THE SOUTHWEST COAST,  
WITH BELOW-NORMAL CONDITIONS OVER WESTERN TEXAS AND THE SOUTHEAST. FOR ALASKA,  
ABOVE-NORMAL PRECIPITATION IS INDICATED FOR CENTRAL REGIONS, WHILE THE SOUTHERN  
COAST LEANS BELOW NORMAL. WHILE THERE ARE SOME REGIONS WHERE PROBABILITIES ARE  
HIGHER AND REACH 50 TO 60% CHANCES, PROBABILITIES ARE LOW AND BROAD AREAS OF EC  
ARE DEPICTED AS THE PRECIPITATION OUTLOOK IS COMPARATIVELY MORE UNCERTAIN THAN  
THE TEMPERATURE OUTLOOK. WHILE EARLY-MONTH FORECASTS FROM THE CFSV2 SHOWED  
STRONG LA NINA-LIKE SIGNALS FOR MONTHLY PRECIPITATION, RECENT GUIDANCE HAS  
BECOME MORE UNCERTAIN AS THE TRANSIENT PATTERN FOR JANUARY EMERGES. THE FIRST  
HALF OF JANUARY FAVORS ABOVE-NORMAL PRECIPITATION FOR MUCH OF THE U.S., BUT THE  
MONTHLY MEAN AS A WHOLE REMAINS LESS CERTAIN DUE TO THE WEAK LA NINA AND  
INTRA-MONTHLY VARIABILITY. DESPITE THE UNCERTAINTY, THE ABOVE-NORMAL  
PRECIPITATION PROBABILITIES, CONSISTENT WITH TYPICAL LA NINA TELECONNECTIONS,  
ARE MAINTAINED IN THE UPDATED OUTLOOK GIVEN CONSISTENCY ACROSS THE MONTH OF  
JANUARY IN MODELS, AS WELL AS IN MONTHLY DYNAMICAL MODEL FORECASTS. A WEAK TILT  
TOWARD ABOVE-NORMAL PRECIPITATION IS EXTENDED INTO SOUTHERN CALIFORNIA AND  
WESTERN ARIZONA GIVEN ABOVE NORMAL PRECIPITATION FOR THIS REGION IN WPC  
FORECASTS FOR DAYS 1-7, AND STRONG ABOVE-NORMAL PROBABILITIES IN CPC 6-10 AND  
8-14 DAY OUTLOOKS THAT MAY BE ENOUGH TO TILT THE MONTH TOWARD ABOVE-NORMAL  
OVERALL, AS WELL AS LOWER PRECIPITATION CLIMATOLOGIES. BELOW-NORMAL  
PROBABILITIES IN THE SOUTHWEST AND TEXAS ARE SIGNIFICANTLY REDUCED SPATIALLY  
DUE TO FORECASTED ABOVE-NORMAL PRECIPITATION IN EARLY JANUARY AND INCONSISTENT  
SIGNALS IN MODELS THROUGHOUT THE MONTH. BELOW-NORMAL PRECIPITATION  
PROBABILITIES ARE MAINTAINED IN THE SOUTHEAST, BUT MODIFIED SLIGHTLY BASED ON  
UPDATED MODEL FORECASTS. NOTABLY, THE LA NINA-ASSOCIATED ABOVE-NORMAL  
PRECIPITATION PREVIOUSLY INDICATED OVER THE GREAT LAKES AND OHIO VALLEY HAS  
BEEN REMOVED IN FAVOR OF EC. MONTHLY MODELS NOW SUGGEST A BELOW-NORMAL TILT FOR  
THIS REGION, HOWEVER, EARLY MONTH WEAKLY ABOVE-NORMAL PRECIPITATION  
PROBABILITIES, THE POTENTIAL FOR INDIVIDUAL STORMS, AND LAKE-EFFECT SNOW  
PRECLUDES A DEFINITIVE BELOW-NORMAL FORECAST. FINALLY, A TILT TOWARD BELOW  
NORMAL PRECIPITATION IS MAINTAINED OVER THE SOUTHERN COAST OF THE MAINLAND AND  
SOUTHEAST ALASKA DUE TO DECADAL TRENDS, LA NINA, AND DYNAMICAL MODEL SUPPORT.  
MODELS ARE MIXED FOR THE MAINLAND, BUT INDICATE A WEAK TILT TOWARD ABOVE NORMAL  
PRECIPITATION OVER THE CENTER OF THE STATE.  
 
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***** PREVIOUS MID-MONTH DISCUSSION BELOW *****  
******************************************************************************  
 
THE JANUARY 2026 MONTHLY TEMPERATURE AND PRECIPITATION OUTLOOKS ARE CONSTRUCTED  
BY CONSIDERING THE LA NINA BASE STATE, AS WELL AS DYNAMICAL CLIMATE MODELS AND  
INTEGRATED STATISTICAL TOOLS. EQUATORIAL SEA SURFACE TEMPERATURES (SSTS) REMAIN  
BELOW AVERAGE ACROSS THE CENTRAL AND EAST-CENTRAL PACIFIC OCEAN, WITH SST  
DEPARTURES IN THE NIñO 3.4 REGION REACHING -0.7 DEGREES C. THESE BELOW-AVERAGE  
SSTS HAVE PERSISTED SINCE SEPTEMBER 2025, AND WE ARE FIRMLY WITHIN WEAK LA NINA  
TERRITORY. FURTHERMORE, ATMOSPHERIC ANOMALIES OVER THE TROPICAL PACIFIC OCEAN  
ARE CONSISTENT WITH LA NINA, CONSEQUENTLY, WE EXPECT LA NINA TELECONNECTIONS  
DURING JANUARY 2026. IN CONTRAST, THE MADDEN-JULIAN OSCILLATION (MJO) REMAINS  
MORE UNCERTAIN, AS MODELS SUGGEST DESTRUCTIVE INTERFERENCE FROM A STRONG KELVIN  
WAVE MAY HINDER ITS RE-EMERGENCE. THE JANUARY 2026 OUTLOOKS ARE PRIMARILY  
SHAPED BY THE LA NINA BACKGROUND STATE, DYNAMICAL CLIMATE MODELS, LOCAL SST  
ANOMALIES, SEA ICE, AND LAND SURFACE CONDITIONS (WHERE APPROPRIATE). AN  
EXPERIMENTAL MULTIPLE LINEAR REGRESSION (MLR) TOOL WHICH ESTIMATES THE  
INFLUENCES OF THE EL NIñO SOUTHERN OSCILLATION (ENSO), MJO, AND DECADAL TRENDS  
IS UTILIZED, AS IS A CONSOLIDATION THAT INCLUDES INFLUENCE OF ENSO, DECADAL  
TRENDS, AND CALIBRATED NORTH AMERICAN MULTI-MODEL ENSEMBLE (NMME) OUTPUT. WEEKS  
3-4 FORECASTS FROM THE GLOBAL ENSEMBLE FORECAST SYSTEM VERSION 12 (GEFSV12),  
THE EUROPEAN CENTRE FOR MEDIUM-RANGE WEATHER FORECASTS (ECMWF), AND COUPLED  
FORECAST SYSTEM VERSION 2 (CFSV2) MODELS THAT COVER THE PERIOD TO ABOUT  
MID-JANUARY WERE ALSO CONSIDERED. IMPACTS FROM THE MJO, ALONG WITH LAND SURFACE  
VARIABLES SUCH AS SNOW COVER, WILL BE RE-EVALUATED AT THE END OF THE MONTH FOR  
THE UPDATED VERSION OF THIS OUTLOOK.  
 
THE JANUARY 2026 TEMPERATURE OUTLOOK FEATURES INCREASED CHANCES OF BELOW-NORMAL  
TEMPERATURES FOR MUCH OF MAINLAND ALASKA, ALL OF SOUTHEAST ALASKA, AND  
STRETCHING FROM THE NORTHERN ROCKIES TO THE UPPER MISSISSIPPI VALLEY.  
ABOVE-NORMAL TEMPERATURES ARE MORE LIKELY FOR THE SOUTHERN TIER OF THE  
CONTIGUOUS UNITED STATES (CONUS), COVERING MUCH OF THE SOUTHWEST, FOUR CORNERS,  
SOUTHERN PLAINS, SOUTHEAST, AND MID-ATLANTIC. EQUAL CHANCES (EC) OF ABOVE-,  
NEAR-, AND BELOW-NORMAL TEMPERATURES ARE FORECAST FOR WESTERN AND NORTHERN  
ALASKA, THE NORTHWEST, MUCH OF NORTHERN AND CENTRAL CALIFORNIA, THE CENTRAL  
PLAINS, GREAT LAKES, AND NEW ENGLAND. A MID-LEVEL HEIGHT PATTERN TYPICAL OF LA  
NINA HAS BEEN ESTABLISHED AND IS FORECAST TO PERSIST INTO AT LEAST MID-JANUARY  
PER WEEK 3-4 DYNAMICAL MODELS. A BLOCKING HIGH HAS BEEN A SIGNIFICANT FEATURE  
OVER THE NORTH PACIFIC AND ALEUTIANS, WITH DOWNSTREAM MID-LEVEL LOW PRESSURE  
RESIDING OVER EASTERN ALASKA AND PORTIONS OF THE NORTHWEST. ABOVE-AVERAGE  
MID-LEVEL HEIGHTS COVER MUCH OF THE SOUTHERN TIER AND EASTERN CONUS. THE  
PATTERN REFLECTED IN THE JANUARY 2026 TEMPERATURE OUTLOOKS IS CONSISTENT WITH  
LA NINA EXPECTATIONS, THOUGH IT HAS BEEN MODIFIED BASED ON AVAILABLE GUIDANCE.  
 
PROBABILITIES FOR BELOW-NORMAL TEMPERATURES ARE HIGHEST OVER SOUTHEAST ALASKA  
AND ADJACENT AREAS OF SOUTHEASTERN MAINLAND ALASKA, REACHING 50 TO 60%, GIVEN  
CONSISTENCY AMONG VARIOUS TOOLS. MONTHLY FORECASTS FOR ALASKA FROM NMME, C3S,  
AND CFSV2 ALIGN WITH SHORTER-TERM WEEK 3-4 FORECASTS IN FAVORING THESE COOLER  
CONDITIONS. PROBABILITIES ARE ALSO ENHANCED, REACHING 50 TO 60%, OVER SOUTHERN  
NEW MEXICO, TEXAS, LOUISIANA, AND FLORIDA. THIS IS DRIVEN BY STRONG AGREEMENT  
BETWEEN DYNAMICAL MODELS AND HIGHER-PROBABILITY SIGNALS IN THE SHORTER-TERM  
WEEK 3-4 FORECASTS.  
 
WHILE DECADAL TRENDS AND CERTAIN TOOLS LIKE THE CFSV2 TILT TOWARD ABOVE-NORMAL  
TEMPERATURES OVER THE NORTHERN COAST OF ALASKA, EC IS INDICATED BECAUSE EARLY  
TO MID-JANUARY IS FORECAST TO BE AT LEAST SLIGHTLY BELOW-NORMAL, AND SEA ICE IS  
PRESENT ALONG THE COAST. SIMILARLY, WHILE LA NINA OFTEN BRINGS BELOW-NORMAL  
TEMPERATURES TO THE NORTHERN TIER OF THE CONUS, SOMETIMES INCLUDING THE  
NORTHWEST, THE NMME, C3S, AND CFSV2 MONTHLY OUTLOOKS ARE GENERALLY ABOVE-NORMAL  
ALONG THE WESTERN THIRD OF THE COUNTRY. FURTHERMORE, SHOULD THE MJO BECOME MORE  
COHERENT, IT COULD INTRODUCE MORE VARIABILITY, SUCH AS COOLER TEMPERATURES IN  
THE WEST, THOUGH THIS INFLUENCE IS CURRENTLY HIGHLY UNCERTAIN. EC IS THUS  
FAVORED OVER MUCH OF THE WEST AND NORTHWEST AS WE CANNOT DISCOUNT THE  
POSSIBILITY OF COOLER AIR EXTENDING FURTHER WEST AND SOUTH.  
 
SIMILARLY, MODELS ARE WARM OVER THE CENTRAL CONUS, HOWEVER, IT IS NOT UNHEARD  
OF DURING JANUARY AND LA NINA YEARS TO SEE COLD AIR INTRUSIONS REACH FURTHER  
SOUTH, AS SUCH WE TILT TOWARD EC OVER THE CENTRAL CONUS AND WILL RE-ASSESS IN  
THE MONTHLY UPDATE. IN ADDITION, UNCERTAINTY IS HIGH IN THE CENTRAL CONUS IN A  
CONSOLIDATION OF STATISTICAL TOOLS (WHICH INCLUDE INFLUENCE OF TREND AND ENSO),  
AND NMME, WHICH ADDS TO OUR UNCERTAINTY HERE. FINALLY, GUIDANCE WAS MIXED AND  
INCONSISTENT OVER THE GREAT LAKES AND NEW ENGLAND, WHICH ALSO LED TO A TILT  
TOWARD EC. BECAUSE THIS LA NINA IS CURRENTLY WEAK, INCREASED VARIABILITY AND  
UNCERTAINTY ARE POSSIBLE FOR SOME REGIONS, WHICH ALSO SUPPORTS EC.  
 
WHILE SOME REGIONS IN THE JANUARY TEMPERATURE OUTLOOK REMAIN UNCERTAIN DUE TO  
THE VARIABILITY OF WEAK LA NINA TELECONNECTIONS, THE PRECIPITATION PATTERN IS  
MORE CONSISTENT ACROSS VARIOUS TOOLS, CLOSELY RESEMBLING THE EXPECTED LA NINA  
SIGNATURE. ABOVE-NORMAL PRECIPITATION IS FAVORED FOR THE NORTHWEST, NORTHERN  
ROCKIES, GREAT LAKES, AND MUCH OF THE OHIO AND MIDDLE MISSISSIPPI VALLEYS.  
WESTERN ALASKA ALSO LEANS ABOVE-NORMAL. DRIER CONDITIONS ARE MORE LIKELY ACROSS  
THE SOUTHWEST, SOUTHERN PLAINS, AND MUCH OF THE SOUTHEAST. A WEAK TILT TOWARD  
BELOW-NORMAL PRECIPITATION IS ALSO INDICATED OVER MUCH OF THE SOUTHERN COAST OF  
MAINLAND ALASKA AND ALL OF SOUTHEAST ALASKA. WHILE THE NMME AND C3S FAVOR  
BELOW-NORMAL PRECIPITATION UP MUCH OF THE WEST COAST, REACHING INTO THE  
NORTHWEST IN SOME MODELS, RECENT FORECASTS FROM CFSV2 TILT ABOVE-NORMAL FOR THE  
MONTH OF JANUARY OVER THE NORTHWEST. MOREOVER, WEEK 3 AND WEEK 4 DYNAMICAL  
MODELS FORECAST AT LEAST 40 TO 50% CHANCES OF ABOVE-NORMAL PRECIPITATION OVER  
THE NORTHWEST. AS SUCH, WE HAVE MINIMIZED THE REGION OF BELOW-NORMAL  
PRECIPITATION FORECAST BY SOME OF THE MULTI-MODEL ENSEMBLES, CONFINING IT MORE  
TO SOUTHEASTERN CALIFORNIA. GIVEN THE UNCERTAINTY REGARDING HOW FAR SOUTH THE  
MOISTURE MAY REACH, MUCH OF CALIFORNIA IS DESIGNATED AS EC. ABOVE-NORMAL  
PRECIPITATION IS ALSO INDICATED FOR THE GREAT LAKES, OHIO VALLEY, AND PARTS OF  
THE MIDDLE AND LOWER MISSISSIPPI VALLEYS AND THE TENNESSEE VALLEY , WHICH IS A  
TYPICAL LA NINA SIGNATURE. THESE TWO AREAS OF ABOVE-NORMAL PRECIPITATION ARE  
CONNECTED BY A WEAK (33 TO 40%) CHANCE OF ABOVE-NORMAL PRECIPITATION THAT IS  
SUPPORTED BY THE NMME AND C3S. THE BELOW-NORMAL PRECIPITATION FAVORED OVER THE  
SOUTHERN TIER IS CONSISTENT WITH MODELS AND LA NINA, THOUGH SOME UNCERTAINTY  
EXISTS OVER PARTS OF TEXAS AND LOUISIANA AS IT IS CURRENTLY UNCLEAR HOW FAR  
SOUTH ANY ABOVE-NORMAL PRECIPITATION MIGHT REACH. FINALLY, OVER ALASKA, DECADAL  
TRENDS AND LA NINA SUPPORT THE FORECAST FOR BELOW-NORMAL PRECIPITATION OVER THE  
SOUTHERN COAST OF THE MAINLAND AND SOUTHEAST ALASKA, WHILE DYNAMICAL MODELS  
LIKE THE NMME, C3S, AND CFSV2 FAVOR ABOVE-NORMAL PRECIPITATION FOR MUCH OF THE  
WESTERN MAINLAND.  
 
FORECASTER: JOHNNA INFANTI  
 
THE CLIMATIC NORMALS ARE BASED ON CONDITIONS BETWEEN 1991 AND 2020, FOLLOWING  
THE WORLD METEOROLOGICAL ORGANIZATION CONVENTION OF USING THE MOST RECENT 3  
COMPLETE DECADES AS THE CLIMATE REFERENCE PERIOD. THE PROBABILITY ANOMALIES  
FOR TEMPERATURE AND PRECIPITATION BASED ON THESE NEW NORMALS BETTER REPRESENT  
SHORTER TERM CLIMATIC ANOMALIES THAN THE FORECASTS BASED ON OLDER NORMALS.  
 
THE NEXT MONTHLY OUTLOOK...FOR FEB ... WILL BE ISSUED ON THU JAN 15 2026  
 
THESE OUTLOOKS ARE BASED ON DEPARTURES FROM THE 1991-2020 BASE PERIOD.  

 
 
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