January 2021 Weather History in Dayton Ohio, United States

The data for this report comes from the James M Cox Dayton International Airport. See all nearby weather stations

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

Dayton Temperature History January 2021

Temperature history in January 2021 in Dayton1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310°F0°F5°F5°F10°F10°F15°F15°F20°F20°F25°F25°F30°F30°F35°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°FDecFeb
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 January 2021 in Dayton

Hourly Temperature in January 2021 in Dayton18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMDecFebfreezingvery cold
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 January 2021 in Dayton

Cloud Cover in January 2021 in Dayton18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMDecFeb
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 January 2021 in Dayton

Daily Precipitation in January 2021 in Dayton1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 inDecFeb
The daily measured quantity of liquid or liquid-equivalent precipitation.

Snow Depth in January 2021 in Dayton

The daily measured snow depth, where available.

Observed Weather in January 2021 in Dayton

Observed Weather in January 2021 in Dayton18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMDecFeb
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, Jan 1 Light Ice Pellets, Light Freezing Rain and Ice Pellets, Freezing Rain, Light Freezing Rain, Heavy Rain, Rain, Light Rain, Mist1.20 in-PL, -FZRAPL, FZRA, -FZRA, +RA, RA, -RA, BR
Sat, Jan 2 Light Drizzle, Mist0.00 in-DZ, BR
Sun, Jan 3 Light Snow, Light Rain, Light Drizzle, Mist0.02 in-SN, -RA, -DZ, BR
Tue, Jan 5 Light Snow, Light Rain and Snow, Light Rain, Mist0.04 in-SN, -RASN, -RA, BR
Thu, Jan 7 MistBR
Sun, Jan 10 MistBR
Mon, Jan 11 MistBR
Tue, Jan 12 Haze, MistHZ, BR
Wed, Jan 13 MistBR
Fri, Jan 15 Light Snow, Light Rain, Mist0.12 in-SN, -RA, BR
Sat, Jan 16 Heavy Snow, Light Snow, Freezing Fog, Mist0.09 in+SN, -SN, FZFG, BR
Sun, Jan 17 Light Snow, Mist0.07 in-SN, BR
Mon, Jan 18 Light Snow, Mist0.00 in-SN, BR
Wed, Jan 20 Light Snow, Mist0.01 in-SN, BR
Sun, Jan 24 Snow, Light Snow, Light Freezing Drizzle, Freezing Fog, Mist0.02 inSN, -SN, -FZDZ, FZFG, BR
Mon, Jan 25 Light Freezing Rain and Ice Pellets, Light Freezing Rain and Snow, Light Freezing Drizzle, Light Freezing Rain, Light Rain, Freezing Fog, Mist0.18 in-FZRAPL, -FZRASN, -FZDZ, -FZRA, -RA, FZFG, BR
Tue, Jan 26 Light Snow, Light Freezing Drizzle, Light Freezing Rain, Light Rain, Drizzle, Light Drizzle, Fog, Mist0.14 in-SN, -FZDZ, -FZRA, -RA, DZ, -DZ, FG, BR
Wed, Jan 27 Light Snow, Light Freezing Drizzle0.00 in-SN, -FZDZ
Thu, Jan 28 Light Snow0.00 in-SN
Sat, Jan 30 Snow, Light Snow, Light Snow and Ice Pellets, Light Ice Pellets and Unknown Precipitation, Haze, Mist0.34 inSN, -SN, -SNPL, -PLUP, HZ, BR
Sun, Jan 31 Light Snow, Light Snow and Ice Pellets, Light Rain and Snow, Rain, Light Rain, Mist0.54 in-SN, -SNPL, -RASN, RA, -RA, BR

Hours of Daylight and Twilight in January 2021 in Dayton

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 in January 2021 in Dayton

The solar day over the course of January 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 January 2021 in Dayton

Solar Elevation and Azimuth in January 2021 in DaytonJan112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMDecFeb0010102020300010102020
northeastsouthwest
Solar elevation and azimuth over the course of January 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 January 2021 in Dayton

Moon Rise, Set & Phases in January 2021 in Dayton18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMDecFebDec 2910:29 PMDec 2910:29 PMJan 1312:01 AMJan 1312:01 AMJan 282:17 PMJan 282:17 PM4:57 PM4:57 PM8:32 AM8:32 AM7:38 AM7:38 AM5:01 PM5:01 PM5:46 PM5:46 PM8:41 AM8:41 AM
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.
Jan 2021IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
95%-10:05 AMWNW7:59 PMENE2:32 AMS239,503 mi
2
89%-10:43 AMWNW9:07 PMENE3:24 AMS237,460 mi
3
81%-11:16 AMWNW10:16 PMENE4:15 AMS235,542 mi
4
72%-11:45 AMW11:25 PME5:04 AMS233,757 mi
5
61%-12:13 PMW-5:51 AMS232,116 mi
6
50%12:34 AME12:41 PMW-6:39 AMS230,657 mi
7
37%1:45 AME1:11 PMWSW-7:29 AMS229,454 mi
8
26%2:57 AMESE1:43 PMWSW-8:21 AMS228,619 mi
9
16%4:11 AMESE2:21 PMWSW-9:16 AMS228,287 mi
10
8%5:24 AMESE3:06 PMWSW-10:15 AMS228,591 mi
11
3%6:35 AMESE4:00 PMWSW-11:17 AMS229,624 mi
12
0%7:38 AMESE5:01 PMWSW-12:20 PMS231,404 mi
13
0%8:33 AMESE6:07 PMWSW-1:20 PMS233,851 mi
14
3%9:18 AMESE7:15 PMWSW-2:17 PMS236,794 mi
15
8%9:55 AMESE8:22 PMWSW-3:08 PMS239,995 mi
16
15%10:26 AMESE9:27 PMWSW-3:56 PMS243,185 mi
17
23%10:53 AME10:28 PMW-4:40 PMS246,100 mi
18
32%11:17 AME11:28 PMW-5:21 PMS248,506 mi
19
41%11:41 AME--6:02 PMS250,222 mi
20
50%-12:27 AMW12:04 PME6:42 PMS251,126 mi
21
61%-1:25 AMWNW12:29 PMENE7:23 PMS251,168 mi
22
70%-2:24 AMWNW12:56 PMENE8:07 PMS250,367 mi
23
79%-3:24 AMWNW1:27 PMENE8:53 PMS248,809 mi
24
86%-4:24 AMWNW2:04 PMENE9:42 PMS246,639 mi
25
93%-5:24 AMWNW2:48 PMENE10:34 PMS244,051 mi
26
97%-6:21 AMWNW3:40 PMENE11:28 PMS241,267 mi
27
99%-7:14 AMWNW4:40 PMENE--
28
100%-8:01 AMWNW5:46 PMENE12:23 AMS238,512 mi
29
100%-8:41 AMWNW6:55 PMENE1:17 AMS235,990 mi
30
97%-9:16 AMWNW8:05 PMENE2:09 AMS233,853 mi
31
92%-9:48 AMWNW9:16 PME3:00 AMS232,187 mi

Humidity Comfort Levels in January 2021 in Dayton

Humidity Comfort Levels in January 2021 in Dayton18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMDecFeb
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 January 2021 in Dayton

Wind Speed in January 2021 in Dayton1815222911223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph10 mph10 mph20 mph20 mph30 mph30 mph40 mph40 mph50 mph50 mphDecFeb
The daily range of reported wind speeds (gray bars), with maximum gust speeds (red ticks).

Hourly Wind Speed in January 2021 in Dayton

Hourly Wind Speed in January 2021 in Dayton18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMDecFeb
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 Dayton

Hourly Wind Direction in 2021 in Dayton18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM3 AM3 AM6 AM6 AM9 AM9 AM12 PM12 PM3 PM3 PM6 PM6 PM9 PM9 PM12 AM12 AMDecFeb
calmnortheastsouthwest
The hourly reported wind direction, color coded by compass point. The shaded overlays indicate night and civil twilight.

Atmospheric Pressure in January 2021 in Dayton

Atmospheric Pressure in January 2021 in Dayton18152229112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313129.4 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 inHgDecFeb
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 James M Cox Dayton International Airport page.

See all nearby weather stations

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