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Sheridan, WY, current

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Last Manual Page Changes Made On 10/21/17

Last Auto Update 7:38a 10/22/17

The Tabular Data Between The Fire Danger Image And The Lower Ticker (Opposite) Are Manually Updated Frequently-Usually At Least Daily Except January. Table And Current Precipitation Will Usually Be Reported Daily By 9:30 a.m. MST/MDT.

All Other Data (except sky condition above) are Updated Automatically 24/7/365 Every 5 Minutes Including Precipitation. The Automatic Rain Gauge Has A Winter Heater Which Will Show Current Precipitation Readings Except During Extremely Cold, Windy, And Dry Snow Conditions. Next Day/Later Corrections Will Often Be Made.


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My Independent Precipitation Expectations, if Any (90% accurate when given-precipitation may only be a trace, 81% accurate for measureable precipitation).
Precipitation Expected By 10/24.
(Date, if given, may change as time approaches.)
Station  Forecast

Snow, Precipitation, Sheridan Area Fire Danger and Drought Information

For afternoon of day indicated.  Updated about 1:10 PM.
Sheridan 2017 Temperature Deviation From Normal (Degrees F); 2016 +0.8 +2.7
Sheridan Keetch-Byram Drought Index (KBDI) 0=Wettest, 800=Driest; Adjective Rating 306 Mild
Big Horn Mountains Approx. Avg. Snow Depth (Inches) as of 10/21/17 & Last Year/Avg. 2.3 2.7/4.3
Sheridan Snow Depth as of 10/21/17 (Inches) & Last Year/50+ Year Average 0.0 0.0/0.2
Sheridan 24 Hour Snowfall (Inches) Through 8:00 AM Today 0.0
Season (7/1-6/30) to Date Snowfall (Inches) Through 10/20/17 & Percent of Average 0.0 0%
Average Season (7/1-6/30) to Date Snowfall (Inches)-Through 10/20 4.2
Evapotranspiration-EOS (Inch) N/A
Precipitation Year to Date (Inches) Through 10/20/17 and Normal 17.50 12.51
September Precipitation (Inches) & Percent of Normal 2.00 142%
Average September Precipitation (Inches) 1.41
2017 Precipitation Through September (Inches) & Percent of Normal 17.38 153%
Normal Annual Precipitation Through September (Inches) 11.37
Wettness/Dryness & Current Trends (SPI) 1 Yr. & 4 Yr. (+3.00=Wettest, -3.00=Driest) 1.44dn 1.19dn
Precipitation Deficit or Surplus 1999 Through 2016 (Inches) 0.20
Current Weather at Sheridan ,WY

Current Outside Temperature Outside Temp History Outside Dewpoint Outside Humidity

Dewpoint History Outside Humidity History

Current Wind Direction Current Wind Speed Current Wind Chill Current THW Index

Wind Speed History Hi Wind Speed History

Barometer(SL) History Temperature at Console Storm Rain Total Current Rain Rate

Precipitation History Today's Precipitation Monthly Total Precipitation Yearly Total Precipitation

Soil Moisture At 8 Inches-Unirrigated Soil Temperature At 8 Inches-Unirrigated

W at 0.0 mph
1013.3  mb & Steady
Today's Precipitation
0.00  in
Precipitation Rate
0.00  in/hr
Storm Total
0.00  in
Monthly Precipitation
0.20  in
Yearly Precipitation
17.50  in
Wind Chill
THW Index
Heat Index
Today's Highs/Lows

High Temperature

Low Temperature

35.8F   at   12:00a

29.7F  at    5:29a

High Humidity

Low Humidity

60%    at   5:44a

39%   at   12:03a

High Dewpoint

Low Dewpoint

20.0F   at   7:30a

13.0F  at   12:03a

High Wind Speed

3.0 mph   at  12:00a

High Barometer(SL)

Low Barometer(SL)

1014.9 mb   at  12:14a

1013.2 mb  at   5:44a

High Rain Rate

0.00 in/hr   at  ----

Low Wind Chill

30.0F   at   1:45a

High Heat Index

35.0F   at  12:00a

Sheridan, Wyoming Area Climate Data
Normal and Average Climate Data Normal Average
Big Horn Mountains Approx. Avg. Annual Snowfall (Inches)-Only Ten Years In Average 147
Big Horn Mountains Date Of Maximum Snow Depth 4/4
Sheridan Annual Snowfall (Inches) 63.6 69.4
Sheridan Date Of Maximum Snow Depth 2/10 1/31
Sheridan Amount (Inches) Of Snowfall Per Event 1.7
Sheridan Annual Precipitation (Inches) 14.08 15.15
Sheridan Annual Temperature (F) 45.9 44.6
Sheridan First Freeze (32 degrees)-National Weather Service Data At Airport 9/20
Sheridan Last Freeze (32 degrees)-National Weather Service Data At Airport 5/19
Sheridan Yearly Wind Speed (MPH)-National Weather Service Data At Airport (No Trees) 7.3
Sheridan Yearly Wind Speed (MPH) At This Location-Last Nine Years Only (With Trees) 1.6
Sheridan's Windiest Month Is April-(MPH) National Weather Service At Airport (No Trees) 9.8

Notes:  Big Horn Mountains snow information is derived from U.S. Government SNOTEL measurments.  Sheridan snow measurements are derived from a combination of NWS (National Weather Service), Cooperator and, for more than a decade, my measurements.  Sheridan precipitation and annual temperatures are derived from the same sources as the snowfall.  Where my measurments have existed for several years, they are used in lieu of any other records for that period of time.  In some cases, data from only NWS as well as records including my data, may both be shown for comparative purposes.  Averages include all data collected.  Normals are averages of 30 year periods which end at the end of the last decade.  I.E. the current normal period began in 1981 and ended in 2010. Fire Danger computations are made at 1:00 PM Mountain Standard Time for the afternoon of the current day. They should only be used for general information as values can change rapidly depending on specific locations and especially rapidly changing wind conditions. Open terrain with higher wind speeds may raise ratings by an entire rating category.
EOS=End of Season.