Heavy to severe thunderstorms may bring areas of excessive rainfall and flooding over parts of the southern Plains through Friday. A Slight Risk of excessive rainfall has been issued. Dangerously hot temperatures are forecast across parts of southern Arizona and far southeastern California Saturday through Monday. An Extreme Heat Watch has been issued. Read More >
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PRELIMINARY WATER YEAR PRECIPITATION TOTALS DATA AS OF: APRIL 2025 FILE CREATED AT: Tue May 6 14:00:02 GMT 2025 BIG HORN COUNTY WY STATIONS PRECIPITATION (INCHES) SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL KGEY GREYBULL ASOS 0.38 0.21 0.23 0.16 0.05 0.47 0.45 M M M M M 1.95 -0.75 72 GBLW4 GREYBULL COOP M M M M M M M M M M M M M M M SHLW4 SHELL 1NE COOP 0.85 0.43 0.27 0.24 1.03 0.43 M M M M M M 3.39 -0.32 91 BSNW4 BASIN COOP 0.85 0.41 0.29 M M M M M M M M M M M M DEVW4 DEAVER COOP 0.30 T T 0.17 0.45 0.11 M M M M M M 1.28 +0.09 107 EMBW4 EMBLEM COOP 0.26 0.09 0.02 0.19 0.78 0.46 M M M M M M 1.80 -0.20 90 LOVW4 LOVELL COOP M 0.20 0.03 M M M M M M M M M M M M RONW4 RAIRDEN 2WSW COOP 0.63 0.27 0.18 0.10 0.34 0.70 M M M M M M M M M FREMONT COUNTY WY STATIONS PRECIPITATION (INCHES) SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL KLND LANDER ASOS 1.45 0.32 0.04 0.87 0.15 3.03 2.57 M M M M M 8.43 +1.68 124 LNRW4 LANDER COOP 1.44 0.33 0.02 0.87 0.14 2.63 2.09 M M M M M 7.52 +2.09 138 KRIW RIVERTON ASOS 0.57 0.15 0.05 0.42 0.08 1.72 1.16 M M M M M 4.15 +0.08 101 RIVW4 RIVERTON COOP 0.60 0.24 0.05 0.51 0.06 1.42 1.29 M M M M M 4.17 +0.52 114 ATLW4 ATLANTIC CITY COOP M M M M M M M M M M M M M M M JEFW4 JEFFREY CITY COOP 1.26 0.01 0.00 1.03 T 0.98 M M M M M M 3.28 -0.22 93 SBDW4 BOYSEN DAM COOP 0.31 T 0.40 0.58 T 1.04 0.89 M M M M M 3.22 -0.52 86 SSHW4 SHOSHONI COOP 0.25 0.05 0.40 0.02 0.03 1.08 0.43 M M M M M 2.26 -0.30 88 DBOW4 DUBOIS COOP 0.74 0.45 0.23 0.28 1.06 1.42 0.53 M M M M M 4.71 +0.93 124 PVLW4 PAVILLION COOP 0.60 0.08 0.00 0.42 0.05 1.06 0.61 M M M M M 2.82 -0.06 97 MTNW4 DIVERSION DAM COOP M M M M M M M M M M M M M M M HOT SPRINGS COUNTY WY STATIONS PRECIPITATION (INCHES) SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL THMW4 THERMOPOLIS COOP 1.08 0.67 0.11 0.36 0.07 1.23 M M M M M M 4.02 -0.17 95 BMTW4 THERMOPOLIS 9NE COOP 1.49 0.39 T 0.32 0.16 1.30 2.49 M M M M M 6.15 -0.24 96 THDW4 THERMOPOLIS 8WNW COOP 0.96 0.15 0.13 0.27 0.11 0.67 M M M M M M 2.29 M M BTXW4 BLACK MOUNTAIN COOP 1.00 0.46 0.08 0.43 0.36 1.66 M M M M M M M M M JOHNSON COUNTY WY STATIONS PRECIPITATION (INCHES) SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL KBYG BUFFALO ASOS 0.78 0.05 0.01 T 0.04 0.60 0.91 M M M M M 2.39 -2.47 49 BUFW4 BUFFALO COOP M M M M M M M M M M M M M M M BFFW4 BUFFALO 5WSW COOP M M M M M M M M M M M M M M M BLYW4 BILLY CREEK COOP M M M M M M M M M M M M M M M KCEW4 KAYCEE COOP 1.08 0.27 T 0.25 0.20 0.80 M M M M M M 4.28 +0.98 129 LINCOLN COUNTY WY STATIONS PRECIPITATION (INCHES) SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL AFOW4 AFTON COOP 1.32 1.06 2.28 1.32 2.74 3.02 1.93 M M M M M 13.67 +3.88 139 BDFW4 BEDFORD 3SE COOP 1.22 1.99 2.29 1.82 4.36 3.61 1.93 M M M M M 17.22 +4.31 133 FBMW4 FOSSIL BUTTE NAT MON COOP 1.09 0.84 1.41 0.44 2.00 1.75 0.73 M M M M M 8.26 +2.58 145 FNTW4 FONTENELLE DAM COOP 0.98 0.19 0.21 0.06 0.55 0.71 M M M M M M 2.82 +0.49 121 KMRW4 KEMMERER 2N COOP 0.85 T M M 0.56 T M M M M M M M M M NATRONA COUNTY WY STATIONS PRECIPITATION (INCHES) SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL KCPR CASPER ASOS 1.51 0.39 0.16 0.48 0.23 1.33 1.59 M M M M M 5.69 +0.14 102 CSWW4 CASPER 1SW COOP M M M M M M M M M M M M M M M CWWW4 CASPER WWTP COOP 2.34 0.31 M 0.50 0.16 0.59 M M M M M M 5.08 +1.50 141 MWTW4 MIDWEST COOP 1.74 0.18 0.12 0.87 0.12 0.76 M M M M M M 3.94 -0.62 86 ACVW4 PATHFINDER DAM COOP 0.64 0.36 0.11 0.84 0.16 1.67 M M M M M M 4.17 +0.08 101 PRSW4 POWDER RIVER SCHOOL COOP 1.06 0.40 0.07 M M M M M M M M M M M M BCRW4 BATES CREEK COOP 1.28 0.10 0.56 0.89 0.05 0.96 M M M M M M M M M PARK COUNTY WY STATIONS PRECIPITATION (INCHES) SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL KCOD CODY AWOS 0.26 0.23 T 0.04 0.11 0.62 2.27 M M M M M 3.53 M M COPW4 CODY COOP 0.39 0.49 0.01 0.45 2.11 M 2.57 M M M M M 7.13 +3.71 208 BLBW4 BUFFALO BILL DAM COOP 0.33 0.45 0.06 0.62 3.66 1.76 M M M M M M 7.06 +4.00 230 OBAW4 CODY 12SE COOP 0.35 0.19 T 0.45 1.83 0.44 M M M M M M 3.26 +0.98 142 CLAW4 CLARK COOP 0.10 0.11 0.03 0.19 1.48 0.27 1.21 M M M M M 3.39 +1.12 149 SUNW4 SUNSHINE 5NE COOP M M M M M M M M M M M M M M M WAPW4 WAPITI 1NE COOP M M M M M M M M M M M M M M M NFKW4 PAHASKA COOP 1.38 0.90 1.34 1.31 4.72 3.73 1.89 M M M M M 15.27 M M PFSW4 POWELL FIELD STN COOP 0.19 0.05 M M 0.65 0.49 M M M M M M M M M SUBLETTE COUNTY WY STATIONS PRECIPITATION (INCHES) SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL KBPI BIG PINEY ASOS 0.75 0.05 0.30 0.05 0.42 1.26 1.04 M M M M M 3.87 M M BPIW4 BIG PINEY COOP 0.97 0.12 0.47 0.16 0.59 M M M M M M M 3.23 +1.53 190 BPEW4 BIG PINEY 6NE COOP M M M M M M M M M M M M M M M BNWW4 BONDURANT COOP 0.50 0.93 3.54 0.87 3.95 2.88 M M M M M M 12.67 +2.00 118 BRSW4 BOULDER REARING STN COOP 0.53 0.26 0.48 0.43 0.78 1.10 1.05 M M M M M 4.63 +0.47 111 CORW4 CORA COOP M M M M M M M M M M M M M M M PNDW4 PINEDALE COOP 0.94 0.41 0.54 0.36 1.12 1.36 M M M M M M 5.55 +1.37 132 DANW4 DANIEL FISH HATCHERY COOP 0.55 0.36 1.13 0.47 1.50 0.95 1.06 M M M M M 6.02 +0.43 107 SWEETWATER COUNTY WY STATIONS PRECIPITATION (INCHES) SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL KRKS ROCK SPRINGS ASOS 0.71 0.36 0.18 0.05 0.22 1.23 0.48 M M M M M 3.23 -1.15 73 RSFW4 ROCK SPRINGS FD COOP 0.72 0.32 0.65 0.34 0.28 0.81 0.34 M M M M M 3.46 -1.15 75 GRNW4 GREEN RIVER COOP 1.28 1.20 0.65 0.48 0.93 0.96 0.42 M M M M M 5.92 +1.93 148 FGRW4 FLAMING GORGE COOP M M M M M M M M M M M M M M M FSNW4 FARSON 2NNE COOP 0.54 0.13 0.11 0.09 0.15 0.38 0.27 M M M M M 1.67 -2.40 41 BITW4 BITTER CREEK 4NE COOP 0.48 0.15 0.06 0.02 0.14 0.66 M M M M M M 1.51 -0.91 62 WMSW4 WAMSUTTER COOP 0.99 0.26 0.12 0.26 0.29 0.82 0.70 M M M M M 3.44 -0.11 96 TETON COUNTY WY STATIONS PRECIPITATION (INCHES) SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL KJAC JACKSON AWOS 0.20 0.68 0.95 0.64 1.90 1.43 0.77 M M M M M 6.57 M M JFSW4 JACKSON COOP 0.41 0.81 1.23 0.36 2.60 2.21 0.54 M M M M M 8.16 +-1.00 89 MOOW4 MOOSE COOP 0.38 M M M 4.93 M M M M M M M M M M MRAW4 MORAN 5WNW COOP 0.30 1.53 M M M 1.41 M M M M M M M M M DARW4 DARWIN RANCH COOP 0.28 1.11 1.25 0.32 2.42 1.87 M M M M M M 7.82 +0.91 113 ALTW4 ALTA COOP 1.18 1.32 1.60 0.86 2.48 1.27 M M M M M M 9.97 -2.77 78 WASHAKIE COUNTY WY STATIONS PRECIPITATION (INCHES) SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL KWRL WORLAND ASOS 0.99 0.11 0.09 0.12 T 0.64 1.11 M M M M M 3.06 +0.05 101 WORW4 WORLAND COOP 0.86 0.28 0.02 0.09 0.24 0.54 M M M M M M 2.78 +0.49 121 TFRW4 TEN SLEEP 4NE COOP 1.20 0.30 0.27 0.82 0.33 1.12 M M M M M M 5.69 +1.11 124 TNSW4 TEN SLEEP 16SSE COOP 1.11 0.44 0.06 0.67 0.18 M M M M M M M M M M YELLOWSTONE NATIONAL PARK STNS PRECIPITATION (INCHES) SHEF ID STATION OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP TOTAL DIFF % OF NORMAL KP60 LAKE YELLOWSTONE ASOS 0.60 1.16 1.33 1.54 M M 2.59 M M M M M 9.34 +0.22 102 LKYW4 LAKE YELLOWSTONE COOP M 0.88 0.86 1.35 2.94 1.36 M M M M M M M M M OLFW4 OLD FAITHFUL COOP M 1.98 0.82 0.51 M 2.35 M M M M M M M M M BKRW4 BECHLER RIVER COOP M M M M M M M M M M M M M M M EYPW4 EAST ENTRANCE COOP M M 2.29 1.65 3.98 0.90 M M M M M M M M M YLWW4 MAMMOTH COOP 0.44 0.54 0.63 0.61 1.68 0.51 M M M M M M 4.52 -0.92 83 TWRW4 TOWER FALLS RNGR STN COOP 0.11 0.66 0.74 0.69 1.63 0.80 2.02 M M M M M 6.65 -1.49 81 LMRW4 LAMAR RNGR STN COOP 0.49 0.43 0.92 1.40 1.78 0.75 M M M M M M 6.37 M M SNKW4 SNAKE RIVER RNGR STN COOP 0.56 M 3.62 2.06 8.62 M M M M M M M 18.71 +6.47 152
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