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Winter 2021 Weather History in Casper Wyoming, United States

The data for this report comes from the Casper–Natrona County International Airport. See all nearby weather stations

This report shows the past weather for Casper, providing a weather history for the winter of 2021. It features all historical weather data series we have available, including the Casper temperature history for the winter of 2021. You can drill down from year to month and even day level reports by clicking on the graphs.

Casper Temperature History in the Winter of 2021

History:202320222021202020192018201720162015
Temperature history in the Winter of 2021 in CasperDecJanFeb-30°F-30°F-20°F-20°F-10°F-10°F-0°F-0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°FFallSpring
The daily range of reported temperatures (gray bars) and 24-hour highs (red ticks) and lows (blue ticks), placed over the daily average high (faint red line) and low (faint blue line) temperature, with 25th to 75th and 10th to 90th percentile bands.

Hourly Temperature in the Winter of 2021 in Casper

History:202320222021202020192018201720162015
Hourly Temperature in the Winter of 2021 in CasperDecJanFeb12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMFallSpringfreezing
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The hourly reported temperature, color coded into bands. The shaded overlays indicate night and civil twilight.
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Cloud Cover in the Winter of 2021 in Casper

History:202320222021202020192018201720162015
Cloud Cover in the Winter of 2021 in CasperDecJanFeb12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMFallSpring
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
no significant cloudno cloud detectedceiling and visibility ok
The hourly reported cloud coverage, categorized by the percentage of the sky covered by clouds.

Daily Precipitation in the Winter of 2021 in Casper

History:202320222021202020192018201720162015
Daily Precipitation in the Winter of 2021 in CasperDecJanFeb0.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 inFallSpring
The daily measured quantity of liquid or liquid-equivalent precipitation.

Observed Weather in the Winter of 2021 in Casper

History:202320222021202020192018201720162015
Observed Weather in the Winter of 2021 in CasperDecJanFeb12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMFallSpring
foghazedrizzlelight rainmoderate rainheavy rainfreezing rainsleetsnow grainslight snowmoderate snowheavy snowhailthunderstorm
The hourly observed weather, color coded by category (in order of severity). If multiple reports are present, the most severe code is shown.
DayObservationsPrecipitationCodes
Fri, Dec 3 MistBR
Sat, Dec 4 Light Rain, Freezing Fog, Mist0.00 in-RA, FZFG, BR
Sun, Dec 5 Light Snow0.02 in-SN
Mon, Dec 6 Light Snow0.00 in-SN
Thu, Dec 9 Light Snow, Haze, Mist0.23 in-SN, HZ, BR
Fri, Dec 10 Light Snow, Haze, Mist0.10 in-SN, HZ, BR
Sat, Dec 11 Light Snow, Haze0.00 in-SN, HZ
Sun, Dec 12 Light Snow0.00 in-SN
Mon, Dec 13 Light Rain0.00 in-RA
Wed, Dec 15 Heavy Snow, Snow, Light Snow, Freezing Fog, Mist0.16 in+SN, SN, -SN, FZFG, BR
Fri, Dec 17 Light Snow0.03 in-SN
Sat, Dec 18 Light Snow0.00 in-SN
Sun, Dec 19 Light Snow0.00 in-SN
Mon, Dec 20 Light Snow, Freezing Fog, Mist0.00 in-SN, FZFG, BR
Thu, Dec 23 Light Snow, Light Rain0.00 in-SN, -RA
Fri, Dec 24 Light Snow, Light Rain0.00 in-SN, -RA
Sun, Dec 26 Light Rain0.00 in-RA
Mon, Dec 27 Snow, Light Snow, Freezing Fog, Mist0.02 inSN, -SN, FZFG, BR
Tue, Dec 28 Light Snow, Haze, Mist0.03 in-SN, HZ, BR
Wed, Dec 29 Light Snow0.00 in-SN
Thu, Dec 30 Light Snow0.00 in-SN
Fri, Dec 31 Snow, Light Snow, Haze, Freezing Fog, Mist0.04 inSN, -SN, HZ, FZFG, BR
Sat, Jan 1 Light Snow0.00 in-SN
Sun, Jan 2 Light Snow0.00 in-SN
Mon, Jan 3 Light Snow0.00 in-SN
Tue, Jan 4 Light Snow, Mist0.04 in-SN, BR
Wed, Jan 5 Heavy Snow, Snow, Light Snow, Haze, Freezing Fog, Mist0.21 in+SN, SN, -SN, HZ, FZFG, BR
Thu, Jan 6 HazeHZ
Fri, Jan 7 Light Rain0.00 in-RA
Sun, Jan 9 Light Snow0.00 in-SN
Mon, Jan 10 Light Snow, Light Rain0.00 in-SN, -RA
Tue, Jan 11 Light Snow0.00 in-SN
Fri, Jan 14 Light Snow0.00 in-SN
Tue, Jan 18 MistBR
Wed, Jan 19 Light Snow, Haze, Mist0.02 in-SN, HZ, BR
Thu, Jan 20 Snow, Light Snow, Freezing Fog, Mist0.05 inSN, -SN, FZFG, BR
Fri, Jan 21 Snow, Light Snow, Freezing Fog, Mist0.44 inSN, -SN, FZFG, BR
Sun, Jan 23 Light Snow0.00 in-SN
Mon, Jan 24 Light Snow, Mist0.04 in-SN, BR
Tue, Jan 25 Light Snow, Mist0.06 in-SN, BR
Wed, Jan 26 Light Snow0.00 in-SN
Thu, Jan 27 Light Snow, Mist0.03 in-SN, BR
Fri, Jan 28 Light Snow0.00 in-SN
Sat, Jan 29 Light Snow0.00 in-SN
Sun, Jan 30 Light Snow0.00 in-SN
Tue, Feb 1 Snow, Light Snow, Haze, Mist0.01 inSN, -SN, HZ, BR
Wed, Feb 2 Light Snow, Haze, Mist0.02 in-SN, HZ, BR
Fri, Feb 4 Light Snow0.00 in-SN
Sat, Feb 5 Heavy Snow, Snow, Light Snow, Freezing Fog, Mist0.08 in+SN, SN, -SN, FZFG, BR
Fri, Feb 11 Snow, Light Snow, Haze, Freezing Fog, Mist0.18 inSN, -SN, HZ, FZFG, BR
Mon, Feb 14 Light Rain0.00 in-RA
Tue, Feb 15 Light Snow, Mist0.01 in-SN, BR
Wed, Feb 16 Light Snow, Haze, Freezing Fog, Mist0.25 in-SN, HZ, FZFG, BR
Sun, Feb 20 Light Rain0.00 in-RA
Mon, Feb 21 Snow, Light Snow, Haze, Mist0.12 inSN, -SN, HZ, BR
Tue, Feb 22 Light Snow, Haze0.09 in-SN, HZ
Wed, Feb 23 Light Snow, Haze0.05 in-SN, HZ
Thu, Feb 24 Light Snow, Haze0.03 in-SN, HZ
Fri, Feb 25 Light Snow, Mist0.00 in-SN, BR
Sun, Feb 27 Light Snow0.00 in-SN

Hours of Daylight and Twilight in the Winter of 2021 in Casper

History:202320222021202020192018201720162015
Hours of Daylight and Twilight in the Winter of 2021 in CasperDecJanFeb0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrFallSpringDec 219 hr, 1 minDec 219 hr, 1 minnightnightdaydayDec 19 hr, 15 minDec 19 hr, 15 minFeb 2811 hr, 11 minFeb 2811 hr, 11 min
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

Sunrise & Sunset with Twilight and Daylight Saving Time in the Winter of 2021 in Casper

History:202320222021202020192018201720162015
Sunrise & Sunset with Twilight and Daylight Saving Time in the Winter of 2021 in CasperDecJanFeb12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMFallSpring6:42 AM6:42 AMFeb 285:53 PMFeb 285:53 PM7:23 AM7:23 AMDec 84:30 PMDec 84:30 PM7:36 AM7:36 AMJan 24:42 PMJan 24:42 PM
The solar day over the course of the Winter of 2021. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

Solar Elevation and Azimuth in the Winter of 2021 in Casper

History:202320222021202020192018201720162015
Solar Elevation and Azimuth in the Winter of 2021 in CasperDecJanFeb12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMFallSpring010203001020
northeastsouthwest
Solar elevation and azimuth in the the winter of 2021. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

Moon Rise, Set & Phases in the Winter of 2021 in Casper

History:202320222021202020192018201720162015
Moon Rise, Set & Phases in the Winter of 2021 in CasperDecJanFeb12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMFallSpringNov 43:15 PMNov 43:15 PMNov 191:58 AMNov 191:58 AMDec 412:44 AMDec 412:44 AMDec 189:36 PMDec 189:36 PMJan 211:34 AMJan 211:34 AMJan 174:49 PMJan 174:49 PMJan 3110:47 PMJan 3110:47 PMFeb 169:57 AMFeb 169:57 AMMar 210:35 AMMar 210:35 AMMar 181:18 AMMar 181:18 AMApr 112:25 AMApr 112:25 AM7:19 AM7:19 AM7:19 AM7:19 AM7:51 AM7:51 AM4:53 PM4:53 PM8:11 AM8:11 AM7:50 AM7:50 AM4:35 PM4:35 PM4:37 PM4:37 PM4:38 PM4:38 PM4:34 PM4:34 PM7:29 AM7:29 AM7:04 AM7:04 AM6:03 PM6:03 PM6:43 PM6:43 PM7:43 AM7:43 AM7:05 PM7:05 PM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

Humidity Comfort Levels in the Winter of 2021 in Casper

History:202320222021202020192018201720162015
Humidity Comfort Levels in the Winter of 2021 in CasperDecJanFeb12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMFallSpring
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The hourly reported humidity comfort level, categorized by dew point. The shaded overlays indicate night and civil twilight.

Wind Speed in the Winter of 2021 in Casper

History:202320222021202020192018201720162015
Wind Speed in the Winter of 2021 in CasperDecJanFeb0 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mph60 mph60 mph70 mph70 mphFallSpring
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in the Winter of 2021 in Casper

History:202320222021202020192018201720162015
Hourly Wind Speed in the Winter of 2021 in CasperDecJanFeb12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMFallSpring
0 mph calm 1 mph light air 4 mph light breeze 8 mph gentle breeze 13 mph moderate breeze 18 mph fresh breeze 25 mph strong breeze 31 mph near gale 39 mph gale 47 mph strong gale 55 mph storm 64 mph violent storm 73 mph hurricane force
The hourly reported wind speed, color coded into bands according to the Beaufort scale. The shaded overlays indicate night and civil twilight.

Hourly Wind Direction in 2021 in Casper

History:202320222021202020192018201720162015
Hourly Wind Direction in 2021 in CasperDecJanFeb12 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMFallSpring
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in the Winter of 2021 in Casper

History:202320222021202020192018201720162015
Atmospheric Pressure in the Winter of 2021 in CasperDecJanFeb29.2 inHg29.2 inHg29.4 inHg29.4 inHg29.6 inHg29.6 inHg29.8 inHg29.8 inHg30.0 inHg30.0 inHg30.2 inHg30.2 inHg30.4 inHg30.4 inHg30.6 inHg30.6 inHgFallSpring
The daily range of atmospheric pressure (gray bars), as measured by the altimeter setting reported in e.g. a METAR report.

The details of the data sources used for this report can be found on the Casper–Natrona County International Airport page.

See all nearby weather stations

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