Last updated: May 6, 2024
Under the Köppen–Geiger climate classification Littleton features a humid continental climate (Dfb).Temperatures typically range between -9 °C (16 °F) and 20 °C (68 °F) through the year, but rarely can drop to -31 °C (-24 °F) or can rise to as high as 36 °C (96 °F).The average annual precipitation amounts to about 1201 mm (47.3 inches) and receives 131 rainy days on the 1 mm (0.04 inches) threshold annually.Littleton enjoys an average of 2692 hours of sunshine throughout the year, and daylight varies from 8 hours 40 minutes to 15 hours 41 minutes per day.
The warmest months in Littleton are June, July and August, with daily mean temperatures ranging from 16 to 20 °C (62 - 68 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -9 to -6 °C (16 - 21 °F) throughout the day. On average each year, Littleton experiences 38 days above 25 °C (77.0 °F) and 156 days below 0 °C (32.0 °F).
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum | 11°C (53°F) | 9°C (49°F) | 15°C (60°F) | 21°C (70°F) | 32°C (90°F) | 36°C (96°F) | 34°C (94°F) | 33°C (92°F) | 32°C (90°F) | 24°C (76°F) | 23°C (74°F) | 15°C (59°F) |
Mean maximum | 7°C (44°F) | 7°C (46°F) | 10°C (50°F) | 18°C (65°F) | 29°C (85°F) | 29°C (85°F) | 31°C (88°F) | 31°C (88°F) | 28°C (83°F) | 21°C (71°F) | 17°C (63°F) | 11°C (52°F) |
Average high | -4°C (25°F) | -3°C (27°F) | 1°C (35°F) | 9°C (48°F) | 17°C (63°F) | 22°C (72°F) | 25°C (78°F) | 25°C (77°F) | 20°C (69°F) | 13°C (55°F) | 5°C (41°F) | -2°C (29°F) |
Daily mean | -9°C (16°F) | -8°C (18°F) | -3°C (26°F) | 4°C (40°F) | 11°C (52°F) | 16°C (62°F) | 20°C (68°F) | 19°C (66°F) | 14°C (58°F) | 8°C (47°F) | 0°C (33°F) | -6°C (21°F) |
Average low | -13°C (8°F) | -13°C (9°F) | -8°C (18°F) | -0°C (31°F) | 5°C (41°F) | 10°C (51°F) | 14°C (57°F) | 13°C (56°F) | 9°C (48°F) | 3°C (39°F) | -4°C (26°F) | -10°C (14°F) |
Mean minimum | -25°C (-12°F) | -24°C (-11°F) | -19°C (-3°F) | -8°C (18°F) | -1°C (30°F) | 3°C (37°F) | 7°C (45°F) | 6°C (43°F) | 1°C (33°F) | -5°C (24°F) | -14°C (7°F) | -21°C (-5°F) |
Minimum | -31°C (-24°F) | -26°C (-14°F) | -22°C (-7°F) | -13°C (8°F) | -4°C (26°F) | 1°C (33°F) | 6°C (42°F) | 5°C (41°F) | -3°C (27°F) | -10°C (13°F) | -19°C (-2°F) | -24°C (-11°F) |
Compare temperature, precipitation, sunshine, UV index in Littleton, Maine, United States with other places around the world.
Littleton usually has the most precipitation in October, November and December, with an average of 10 rainy days and 116 mm (4.6 inches) of precipitation per month.The driest months in Littleton are February, March and August. On average, 83 mm (3.3 inches) of precipitation falls during these months.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Average precipitation mm (inches) | 94 (3.7) | 83 (3.3) | 77 (3.0) | 109 (4.3) | 108 (4.2) | 95 (3.8) | 101 (4.0) | 88 (3.5) | 98 (3.8) | 118 (4.6) | 117 (4.6) | 113 (4.4) |
Average precipitation days (≥ 1 mm) | 9 | 11 | 9 | 12 | 13 | 13 | 12 | 10 | 10 | 11 | 11 | 10 |
The sunniest months in Littleton are June, July and August, when the sun shines an average of 10 hours 12 minutes a day.Least sunny months in Littleton: January, November and December receive an average of 4 hours 35 minutes of sunshine daily.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean monthly sunshine hours | 122 | 181 | 228 | 210 | 270 | 306 | 318 | 314 | 254 | 186 | 153 | 146 |
Mean daily daylight hours | 9h 5m | 10h 21m | 11h 57m | 13h 35m | 14h 59m | 15h 41m | 15h 18m | 14h 3m | 12h 28m | 10h 51m | 9h 25m | 8h 40m |
Littleton experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 8 - 10, which corresponds to the Very High category of sun exposure.January, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Littleton UV Index data.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
UV Index (month maximum) | 2 | 3 | 5 | 7 | 8 | 10 | 8 | 8 | 7 | 5 | 3 | 2 |