Johnstown Weather in January
Average highs run from 35°F on January 1 to 34°F on January 31, and lows from 19°F to 16°F. Normal precipitation for the month is 3.06 in over about 12 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
- 34°F
- Average low
- 17°F
- Precipitation
- 3.06 in
- Snowfall
- 9.2 in
- Record high
- 67°FJan 12, 2020
- Record low
- -29°FJan 19, 1994
- Chance of a freeze
- 100%
- Daylight
- 9 h 23 min to 10 h 09 min
- Cloud cover
- 76%
- Humidity
- 87%
- Dew point
- 24°F
- Wind
- 8.5 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 | 35°F | 19°F | 61°F 1966 | -8°F 1977 | 39% | 20% |
| Jan 2 | 35°F | 19°F | 62°F 1985 | -3°F 1974 | 40% | 20% |
| Jan 3 | 34°F | 19°F | 62°F 2000 | -7°F 2018 | 40% | 20% |
| Jan 4 | 34°F | 19°F | 59°F 2023 | -9°F 1981 | 40% | 21% |
| Jan 5 | 34°F | 18°F | 64°F 1997 | -13°F 1959 | 40% | 21% |
| Jan 6 | 34°F | 18°F | 63°F 1998 | -10°F 2018 | 40% | 21% |
| Jan 7 | 34°F | 18°F | 58°F 1998 | -12°F 2014 | 40% | 21% |
| Jan 8 | 34°F | 18°F | 65°F 2008 | -15°F 1968 | 40% | 21% |
| Jan 9 | 34°F | 18°F | 65°F 2008 | -11°F 1970 | 40% | 22% |
| Jan 10 | 34°F | 17°F | 62°F 2026 | -12°F 1962 | 40% | 22% |
| Jan 11 | 33°F | 17°F | 57°F 2020 | -12°F 1982 | 40% | 22% |
| Jan 12 | 33°F | 17°F | 67°F 2020 | -6°F 1977 | 40% | 22% |
| Jan 13 | 33°F | 17°F | 64°F 2013 | -9°F 1977 | 40% | 22% |
| Jan 14 | 33°F | 17°F | 67°F 2005 | -10°F 1964 | 40% | 22% |
| Jan 15 | 33°F | 17°F | 63°F 1995 | -12°F 1982 | 40% | 22% |
| Jan 16 | 33°F | 17°F | 56°F 1991 | -16°F 1972 | 39% | 22% |
| Jan 17 | 33°F | 16°F | 53°F 1990 | -23°F 1982 | 39% | 22% |
| Jan 18 | 33°F | 16°F | 60°F 2017 | -21°F 1994 | 39% | 22% |
| Jan 19 | 33°F | 16°F | 63°F 1996 | -29°F 1994 | 39% | 22% |
| Jan 20 | 33°F | 16°F | 60°F 1951 | -26°F 1994 | 39% | 22% |
| Jan 21 | 33°F | 16°F | 61°F 1959 | -23°F 1984 | 39% | 22% |
| Jan 22 | 33°F | 16°F | 59°F 2017 | -21°F 1984 | 39% | 22% |
| Jan 23 | 33°F | 16°F | 66°F 1999 | -9°F 2011 | 39% | 22% |
| Jan 24 | 33°F | 16°F | 58°F 1999 | -22°F 1963 | 39% | 22% |
| Jan 25 | 33°F | 16°F | 59°F 1972 | -17°F 1961 | 39% | 22% |
| Jan 26 | 33°F | 16°F | 55°F 1989 | -8°F 2000 | 39% | 22% |
| Jan 27 | 33°F | 16°F | 59°F 2024 | -17°F 1963 | 39% | 22% |
| Jan 28 | 34°F | 16°F | 61°F 1999 | -18°F 2014 | 39% | 22% |
| Jan 29 | 34°F | 16°F | 63°F 2002 | -18°F 2014 | 39% | 22% |
| Jan 30 | 34°F | 16°F | 62°F 1975 | -8°F 2014 | 39% | 22% |
| Jan 31 | 34°F | 16°F | 57°F 2016 | -11°F 1955 | 39% | 22% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EST).
- January 1
- sunrise 7:53 AM, sunset 5:16 PM
- January 31
- sunrise 7:40 AM, sunset 5:49 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00331404 (Centerburg 2 Se), public domain. Records: NOAA GHCN-Daily, station USC00331404, 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.