Donora Weather in January
Average highs run from 40°F on January 1 to 39°F on January 31, and lows from 23°F to 20°F. Normal precipitation for the month is 2.90 in over about 15 wet days.
January day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
January at a glance
- Average high
- 39°F
- Average low
- 21°F
- Precipitation
- 2.90 in
- Snowfall
- 5.7 in
- Record high
- 75°FJan 25, 1950
- Record low
- -16°FJan 23, 1936
- Chance of a freeze
- 100%
- Daylight
- 9 h 23 min to 10 h 08 min
- Cloud cover
- 77%
- Humidity
- 88%
- Dew point
- 24°F
- Wind
- 6.5 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Jan 1 | 40°F | 23°F | 68°F 1952 | 2°F 2018 | 45% | 13% |
| Jan 2 | 40°F | 22°F | 66°F 2000 | 5°F 2018 | 46% | 14% |
| Jan 3 | 39°F | 22°F | 65°F 2000 | 2°F 2018 | 46% | 14% |
| Jan 4 | 39°F | 22°F | 68°F 1950 | 3°F 2018 | 46% | 14% |
| Jan 5 | 39°F | 22°F | 61°F 1946 | -3°F 2018 | 46% | 15% |
| Jan 6 | 39°F | 22°F | 70°F 1946 | -7°F 2014 | 47% | 15% |
| Jan 7 | 39°F | 22°F | 65°F 2008 | -9°F 2014 | 47% | 15% |
| Jan 8 | 39°F | 21°F | 69°F 2008 | -1°F 2015 | 47% | 15% |
| Jan 9 | 39°F | 21°F | 69°F 1946 | 5°F 2017 | 47% | 16% |
| Jan 10 | 39°F | 21°F | 59°F 1939 | 0°F 2015 | 47% | 16% |
| Jan 11 | 39°F | 21°F | 71°F 2020 | 8°F 2004 | 47% | 16% |
| Jan 12 | 38°F | 21°F | 65°F 2017 | 13°F 2003 | 47% | 16% |
| Jan 13 | 38°F | 21°F | 70°F 2005 | 6°F 2016 | 47% | 16% |
| Jan 14 | 38°F | 20°F | 64°F 1937 | 4°F 1948 | 47% | 17% |
| Jan 15 | 38°F | 20°F | 62°F 1952 | 1°F 1948 | 47% | 17% |
| Jan 16 | 38°F | 20°F | 60°F 1949 | -7°F 2009 | 47% | 17% |
| Jan 17 | 38°F | 20°F | 61°F 2017 | -7°F 2009 | 47% | 17% |
| Jan 18 | 38°F | 20°F | 57°F 1951 | 2°F 2003 | 47% | 17% |
| Jan 19 | 38°F | 20°F | 62°F 1951 | 0°F 1948 | 47% | 18% |
| Jan 20 | 38°F | 20°F | 68°F 1951 | 2°F 2025 | 47% | 18% |
| Jan 21 | 38°F | 20°F | 64°F 2017 | -1°F 2025 | 47% | 18% |
| Jan 22 | 38°F | 20°F | 63°F 2018 | -14°F 1936 | 47% | 18% |
| Jan 23 | 38°F | 20°F | 63°F 2012 | -16°F 1936 | 47% | 18% |
| Jan 24 | 39°F | 20°F | 65°F 1950 | -11°F 1936 | 47% | 18% |
| Jan 25 | 39°F | 20°F | 75°F 1950 | -6°F 1936 | 47% | 18% |
| Jan 26 | 39°F | 20°F | 68°F 1950 | -4°F 1936 | 47% | 18% |
| Jan 27 | 39°F | 20°F | 59°F 2002 | -9°F 1936 | 46% | 18% |
| Jan 28 | 39°F | 20°F | 63°F 2002 | -6°F 2014 | 46% | 18% |
| Jan 29 | 39°F | 20°F | 68°F 2013 | -3°F 2014 | 46% | 18% |
| Jan 30 | 39°F | 20°F | 67°F 2013 | -5°F 2019 | 45% | 18% |
| Jan 31 | 39°F | 20°F | 72°F 2002 | -6°F 2026 | 45% | 18% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EST).
- January 1
- sunrise 7:42 AM, sunset 5:05 PM
- January 31
- sunrise 7:29 AM, sunset 5:37 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00362190 (Donora 1 Sw), public domain. Records: NOAA GHCN-Daily, station USW00014762, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.