A powerful Arctic blast will bring dangerously cold, record low temperatures to the upper Ohio Valley, Mid-Atlantic, Gulf Coast and Southeast U.S. this weekend. A rapidly deepening storm will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia into Sunday. Storm-force winds and coastal flooding will be possible along the East Coast. Read More >
| Water Year: | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
PRELIMINARY WATER YEAR PRECIPITATION TOTALS
DATA AS OF: DECEMBER 2025
FILE CREATED AT: Sat Jan 31 20:00:03 GMT 2026
NOTE: Precipitation totals preceding an "*" character may be low,
because of one or more daily reports are missing in the database.
Use this data with caution.
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 1.89 0.09 0.24 T* M M M M M M M M 2.22 +1.32 247
GBLW4 GREYBULL COOP M M M M M M M M M M M M M M M
SHLW4 SHELL 1NE COOP 2.90 0.25 0.50 0.00* M M M M M M M M 3.65 +1.56 175
BSNW4 BASIN COOP 2.50 0.00 T T* M M M M M M M M 2.50 +1.18 189
DEVW4 DEAVER COOP 0.71 0.23 0.08 T* M M M M M M M M 1.02 +0.27 136
EMBW4 EMBLEM COOP M M M M M M M M M M M M M M M
LOVW4 LOVELL COOP 2.57 0.22 M M M M M M M M M M 2.79* +1.71 258
RONW4 RAIRDEN 2WSW COOP 1.91 T 0.01 M M M M M M M M M 1.92 +0.78 168
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 1.49 0.43 0.28 0.06* M M M M M M M M 2.20 -0.61 78
LNRW4 LANDER COOP M M M M M M M M M M M M M M M
KRIW RIVERTON ASOS 1.43 0.29 0.18 0.05* M M M M M M M M 1.90 +0.19 111
RIVW4 RIVERTON COOP 1.44 0.34 0.16 0.03* M M M M M M M M 1.94 +0.44 129
ATLW4 ATLANTIC CITY COOP M M M M M M M M M M M M M M M
JEFW4 JEFFREY CITY COOP 0.12 0.42 0.14 0.00* M M M M M M M M 0.68 -1.24 35
SBDW4 BOYSEN DAM COOP 1.60 0.05 0.08 0.02* M M M M M M M M 1.73 -0.03 98
SSHW4 SHOSHONI COOP 0.65* 0.05 0.05 0.03* M M M M M M M M 0.75* -0.21 78
DBOW4 DUBOIS COOP 3.30 0.36* 1.09 0.24* M M M M M M M M 4.75* +3.09 286
PVLW4 PAVILLION COOP 0.71* 0.36 0.01 0.12* M M M M M M M M 1.08* -0.12 90
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 2.56* 0.05 0.24 0.04* M M M M M M M M 2.85* +0.33 113
BMTW4 THERMOPOLIS 9NE COOP 2.51 0.19 0.35 0.05* M M M M M M M M 3.05 +0.55 122
THDW4 THERMOPOLIS 8WNW COOP 2.78 0.11 0.13 M M M M M M M M M 3.02 M M
BTXW4 BLACK MOUNTAIN COOP 1.67 0.15 0.28 M M M M M M M M M 2.10 -0.95 69
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 2.33 0.04 0.13 0.05* M M M M M M M M 2.50 +0.63 134
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 2.26 T 0.25 T* M M M M M M M M 2.51 +0.59 131
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 3.99 1.74 2.76 0.64* M M M M M M M M 8.49 +4.13 195
BDFW4 BEDFORD 3SE COOP 2.16* M M M M M M M M M M M 2.16* -3.49 38
FBMW4 FOSSIL BUTTE NAT MON COOP 2.62 1.21* 1.19* 0.73* M M M M M M M M 5.02* +2.31 185
FNTW4 FONTENELLE DAM COOP 0.71 0.28 0.25 0.08* M M M M M M M M 1.24 -0.04 97
KMRW4 KEMMERER 2N COOP 1.13 0.92 T 0.00* M M M M M M M M 2.05 -0.52 80
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 1.56 0.27 0.36 0.19* M M M M M M M M 2.19 -0.17 93
CSWW4 CASPER 1SW COOP M M M M M M M M M M M M M M M
CWWW4 CASPER WWTP COOP 1.61 0.02 0.49 0.00* M M M M M M M M 2.12 -0.17 93
MWTW4 MIDWEST COOP M M M M M M M M M M M M M M M
ACVW4 PATHFINDER DAM COOP 0.73 0.10 0.28 0.14* M M M M M M M M 1.11 -1.05 51
PRSW4 POWDER RIVER SCHOOL COOP 1.01 0.12* 0.29 0.01* M M M M M M M M 1.42* -0.43 77
BCRW4 BATES CREEK COOP 1.24 0.13 0.17 M M M M M M M M M 1.54 -1.21 56
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 0.37* 0.07 0.15 M M M M M M M M M 0.59* M M
COPW4 CODY COOP 1.10 0.25 0.82* 0.11* M M M M M M M M 2.17* +0.47 128
BLBW4 BUFFALO BILL DAM COOP 1.08 0.22 0.87 0.01* M M M M M M M M 2.17 +0.41 123
OBAW4 CODY 12SE COOP 1.35 0.24 0.26 T* M M M M M M M M 1.85 +0.67 157
CLAW4 CLARK COOP 1.05 0.05 0.24 0.01* M M M M M M M M 1.34 +0.38 140
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 4.50 2.29 5.76* 1.26* M M M M M M M M 12.55* M M
PFSW4 POWELL FIELD STN COOP 0.95 0.24 0.02 M M M M M M M M M 1.21 +0.34 139
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 0.98 0.56 0.67 0.06* M M M M M M M M 2.21 +1.17 212
BPIW4 BIG PINEY COOP 1.00 0.75 0.16* 0.00* M M M M M M M M 1.91* +0.87 184
BNWW4 BONDURANT COOP 1.99 0.98 4.26* 0.06* M M M M M M M M 7.23* +1.61 129
BRSW4 BOULDER REARING STN COOP 1.10 0.42 0.51 0.10* M M M M M M M M 2.03 +0.34 120
CORW4 CORA COOP M M M M M M M M M M M M M M M
PNDW4 PINEDALE COOP 2.28 0.59 1.03* 0.54* M M M M M M M M 3.90* +1.67 175
DANW4 DANIEL FISH HATCHERY COOP 1.69 0.67 1.49 0.24* M M M M M M M M 3.85 +1.29 150
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 0.75 0.18 0.10 0.03* M M M M M M M M 1.03 -0.83 55
RSFW4 ROCK SPRINGS FD COOP 0.82* 0.43* 0.15 T* M M M M M M M M 1.40* -0.73 66
GRNW4 GREEN RIVER COOP 1.37 1.05 0.15 0.38* M M M M M M M M 2.57 +0.91 155
FGRW4 FLAMING GORGE COOP M M M M M M M M M M M M M M M
FSNW4 FARSON 2NNE COOP 1.05 0.32 0.31 0.12* M M M M M M M M 1.68 +0.03 102
BITW4 BITTER CREEK 4NE COOP 0.76 0.05 0.06 0.00* M M M M M M M M 0.87 -0.61 59
WMSW4 WAMSUTTER COOP 1.53 0.43 0.24 0.05* M M M M M M M M 2.20 +0.71 148
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 1.54* 0.55* 3.64 0.66* M M M M M M M M 5.73* M M
JFSW4 JACKSON COOP 2.81* 0.28* 3.58* 0.79* M M M M M M M M 6.67* +2.24 151
MOOW4 MOOSE COOP M 0.39* 4.58* 1.23* M M M M M M M M 4.97* -1.81 73
MRAW4 MORAN 5WNW COOP 0.00* 0.12* 0.00* 4.48* M M M M M M M M 0.12* -7.45 2
DARW4 DARWIN RANCH COOP 2.82 0.77 2.36 0.13* M M M M M M M M 5.95 +2.21 159
ALTW4 ALTA COOP 3.26 0.39 2.73 0.19* M M M M M M M M 6.38 -0.11 98
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 1.40 T 0.01 T* M M M M M M M M 1.41 +0.14 111
WORW4 WORLAND COOP 1.62 0.05 0.03 0.02* M M M M M M M M 1.70 +0.35 126
TFRW4 TEN SLEEP 4NE COOP 2.03 0.25 0.57 T* M M M M M M M M 2.85 +0.16 106
TNSW4 TEN SLEEP 16SSE COOP 0.95* 0.00* 0.00* M M M M M M M M M 0.95* -1.96 33
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 3.48 1.09 5.43 1.61* M M M M M M M M 10.00 +5.07 203
LKYW4 LAKE YELLOWSTONE COOP 0.62* 0.64* 2.37* 0.30* M M M M M M M M 3.63* -1.03 78
OLFW4 OLD FAITHFUL COOP M M 5.94* 1.18* M M M M M M M M 5.94* -1.17 84
BKRW4 BECHLER RIVER COOP 2.32* M M M M M M M M M M M 2.32* M M
EYPW4 EAST ENTRANCE COOP 4.08 1.29* 5.99* 0.95* M M M M M M M M 11.36* M M
YLWW4 MAMMOTH COOP M 0.34 2.03* M M M M M M M M M 2.37* -0.75 76
TWRW4 TOWER FALLS RNGR STN COOP 1.68* 0.31* 2.56* 0.48* M M M M M M M M 4.55* +0.47 112
LMRW4 LAMAR RNGR STN COOP 2.69 0.45 2.82 M M M M M M M M M 5.96 M M
SNKW4 SNAKE RIVER RNGR STN COOP 2.56* 0.36* 4.83* 0.93* M M M M M M M M 7.75* -1.35 85
Follow us on X
Follow us on Facebook
Follow us on YouTube
RIW RSS Feed