Jefferson, Maryland Climate
United States
Pop. 2,111 Elev. 174 m / 571 ft
TZ: America/New_York (UTC-4) ·
Jefferson has warm summers with average highs of 89°F (32°C) in July, and frigid winters averaging 23°F (-5°C) in January. Humidity pushes the summer feels-like temperature to around 105°F (41°C). Rain falls on about 62 days per year (37.2 in / 945 mm total), with snow on 4 days and 24 in (597 mm) of annual accumulation. The city averages 117 sunny days per year and around 44 thunderstorm days. Nearby lake water reaches 83°F (28°C) in summer.
| Temperature | 89°F (32°C) high | 23°F (-5°C) low |
| Feels like | 105°F (40°C) high | 17°F (-8°C) low |
| Rain | 62 days | 37.2 in (945 mm) /yr |
| Snow | 4 days | 23.5 in (597 mm) /yr |
| Sky | 117 sunny | 44 stormy |
| Wind | 2.2 mph (1.0 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Mar, Apr, Aug, Sep, Oct
Sky & Air by Month
Cloud cover (%)
42
Jan 55
Feb 46
Mar 68
Apr 75
May 60
Jun 62
Jul 52
Aug 60
Sep 46
Oct 50
Nov 62
Dec Humidity (%)
55
Jan 57
Feb 49
Mar 57
Apr 67
May 70
Jun 74
Jul 68
Aug 69
Sep 63
Oct 57
Nov 61
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 26 mi Hagerstown Regional Richard A Henson Field (HGR)
Ski resort 13 mi Snow Riders
National park 11 mi Harpers Ferry National Historical Park
Mountain peak
(4,928 ft) 284 mi Third Peak
Hospital 8 mi Frederick Memorial Hospital
Hiking trail 7 mi Red Maple Trail
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 37°F 3°C | 23°F -5°C | 0.6 in 15 mm | 12.8 in326 mm | 16 |
| February | 45°F 7°C | 30°F -1°C | 2.2 in 56 mm | 6.2 in157 mm | 10 |
| March | 62°F 16°C | 41°F 5°C | 1.7 in 43 mm | — | 13 |
| April | 68°F 20°C | 50°F 10°C | 3.5 in 88 mm | — | 5 |
| May | 74°F 23°C | 57°F 14°C | 8.0 in 204 mm | — | 2 |
| June | 85°F 29°C | 66°F 19°C | 5.2 in 132 mm | — | 12 |
| July | 89°F 32°C | 72°F 22°C | 6.8 in 173 mm | — | 8 |
| August | 82°F 28°C | 64°F 18°C | 1.4 in 35 mm | — | 13 |
| September | 80°F 26°C | 61°F 16°C | 2.4 in 62 mm | — | 8 |
| October | 68°F 20°C | 48°F 9°C | 2.1 in 53 mm | — | 12 |
| November | 56°F 13°C | 40°F 4°C | 1.7 in 43 mm | 0.2 in4 mm | 13 |
| December | 42°F 6°C | 28°F -2°C | 1.7 in 42 mm | 4.3 in110 mm | 5 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 16 | 0 |
| February | 10 | 2 |
| March | 13 | 0 |
| April | 5 | 3 |
| May | 2 | 12 |
| June | 12 | 12 |
| July | 8 | 9 |
| August | 13 | 2 |
| September | 8 | 2 |
| October | 12 | 1 |
| November | 13 | 0 |
| December | 5 | 1 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 33°F 1°C |
| February | 33°F 1°C |
| March | 42°F 6°C |
| April | 53°F 12°C |
| May | 64°F 18°C |
| June | 75°F 24°C |
| July | 83°F 28°C |
| August | 75°F 24°C |
| September | 69°F 20°C |
| October | 60°F 16°C |
| November | 48°F 9°C |
| December | 36°F 2°C |