Delta climate

Delta Weather in January

NOAA 1991-2020 normals for Conowingo Dam, 15.2 km from Delta

Average highs run from 41°F on January 1 to 41°F on January 31, and lows from 27°F to 24°F. Normal precipitation for the month is 3.63 in over about 11 wet days.

January day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Delta, in °F, with the record for each date.-20020406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

January at a glance

Average high
40°F
Average low
25°F
Precipitation
3.63 in
Snowfall
8.7 in
Record high
74°FJan 26, 1950
Record low
-9°FJan 22, 1961
Chance of a freeze
100%
Daylight
9 h 26 min to 10 h 10 min
Cloud cover
64%
Humidity
84%
Dew point
26°F
Wind
9.6 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.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Jan 141°F27°F60°F 19735°F 201833%9%
Jan 241°F27°F60°F 19980°F 196833%9%
Jan 341°F27°F63°F 20225°F 197934%9%
Jan 441°F27°F67°F 19502°F 201434%10%
Jan 541°F26°F68°F 19502°F 201434%10%
Jan 640°F26°F70°F 19504°F 198834%10%
Jan 740°F26°F73°F 20071°F 201434%10%
Jan 840°F26°F64°F 1998-1°F 197034%10%
Jan 940°F26°F72°F 1937-2°F 197035%11%
Jan 1040°F25°F65°F 2008-1°F 197035%11%
Jan 1140°F25°F67°F 1975-5°F 198835%11%
Jan 1240°F25°F65°F 2020-2°F 198135%11%
Jan 1340°F25°F67°F 2020-6°F 198135%11%
Jan 1440°F25°F66°F 19920°F 198835%11%
Jan 1540°F25°F63°F 1995-1°F 196435%12%
Jan 1640°F25°F63°F 19530°F 196435%12%
Jan 1740°F24°F60°F 1990-8°F 198235%12%
Jan 1840°F24°F66°F 2006-7°F 197735%12%
Jan 1940°F24°F64°F 1951-4°F 199435%13%
Jan 2040°F24°F58°F 1991-3°F 198435%13%
Jan 2140°F24°F63°F 1959-7°F 198535%13%
Jan 2240°F24°F64°F 1959-9°F 196135%13%
Jan 2340°F24°F66°F 1967-3°F 193635%13%
Jan 2440°F24°F71°F 19670°F 196135%13%
Jan 2540°F24°F67°F 1967-5°F 200335%14%
Jan 2640°F24°F74°F 1950-4°F 194835%14%
Jan 2740°F24°F69°F 19740°F 194835%14%
Jan 2840°F24°F63°F 2002-6°F 198735%14%
Jan 2940°F24°F66°F 1975-4°F 196335%14%
Jan 3040°F24°F70°F 20021°F 202634%14%
Jan 3141°F24°F66°F 2013-1°F 201934%14%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Delta, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EST).

January 1
sunrise 7:26 AM, sunset 4:52 PM
January 31
sunrise 7:14 AM, sunset 5:24 PM

Every day of January: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00182060 (Conowingo Dam), public domain. Records: NOAA GHCN-Daily, station USC00182060, 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.