Bartlett weather by month
What a typical year looks like in Bartlett, New Hampshire: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Mount Washington, 22 km from Bartlett; records cover 1948–2026.
The year at a glance
- Precipitation a year
- 91.2 in2317 mm
- Snow a year
- 282 in716 cm
- Last spring freeze
- Jun 15
- First fall freeze
- Aug 9
- Heating degree days
- 13,470
- Cooling degree days
- 0
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −26°−32° (heating, 99%) and 65°18° (cooling, 1%).
Month by month
Bartlett in January
Highs average 15°−9° and lows −3°−20°, with 5.7 in146 mm of precipitation and 41 in105 cm of snow in a typical January.
- Record high
- 48°9° (2013)
- Record low
- −46°−43° (1968)
- Heating degree days
- 1834
- Cooling degree days
- 0
Bartlett in February
Highs average 15°−10° and lows −3°−19°, with 5.5 in138 mm of precipitation and 43 in110 cm of snow in a typical February.
- Record high
- 48°9° (2018)
- Record low
- −47°−44° (2023)
- Heating degree days
- 1655
- Cooling degree days
- 0
Bartlett in March
Highs average 21°−6° and lows 5°−15°, with 6.7 in171 mm of precipitation and 46 in117 cm of snow in a typical March.
- Record high
- 55°13° (1998)
- Record low
- −38°−39° (1950)
- Heating degree days
- 1617
- Cooling degree days
- 0
Bartlett in April
Highs average 31°−1° and lows 17°−8°, with 7.3 in186 mm of precipitation and 33 in84 cm of snow in a typical April.
- Record high
- 60°16° (1976)
- Record low
- −20°−29° (1954)
- Heating degree days
- 1239
- Cooling degree days
- 0
Bartlett in May
Highs average 43°6° and lows 30°−1°, with 7.7 in195 mm of precipitation and 13 in33 cm of snow in a typical May.
- Record high
- 66°19° (1977)
- Record low
- −2°−19° (1966)
- Heating degree days
- 888
- Cooling degree days
- 0
Bartlett in June
Highs average 51°11° and lows 40°4°, with 8.6 in218 mm of precipitation and 1.3 in3.3 cm of snow in a typical June.
- Record high
- 72°22° (2003)
- Record low
- 13°−11° (1980)
- Heating degree days
- 585
- Cooling degree days
- 0
Bartlett in July
Highs average 55°13° and lows 45°7°, with 8.9 in227 mm of precipitation in a typical July.
- Record high
- 71°22° (1952)
- Record low
- 24°−4° (2001)
- Heating degree days
- 468
- Cooling degree days
- 0
Bartlett in August
Highs average 54°12° and lows 43°6°, with 7.7 in196 mm of precipitation and 0.1 in0.3 cm of snow in a typical August.
- Record high
- 72°22° (1975)
- Record low
- 20°−7° (1965)
- Heating degree days
- 505
- Cooling degree days
- 0
Bartlett in September
Highs average 49°10° and lows 37°3°, with 7.7 in195 mm of precipitation and 1.2 in3 cm of snow in a typical September.
- Record high
- 69°21° (1999)
- Record low
- 9°−13° (1992)
- Heating degree days
- 657
- Cooling degree days
- 0
Bartlett in OctoberThis month
Highs average 38°3° and lows 25°−4°, with 10 in254 mm of precipitation and 19 in48 cm of snow in a typical October.
- Record high
- 62°17° (2005)
- Record low
- −2°−19° (1966)
- Heating degree days
- 1045
- Cooling degree days
- 0
Bartlett in November
Highs average 28°−2° and lows 13°−10°, with 8.1 in205 mm of precipitation and 36 in90 cm of snow in a typical November.
- Record high
- 52°11° (1982)
- Record low
- −26°−32° (2018)
- Heating degree days
- 1328
- Cooling degree days
- 0
Bartlett in December
Highs average 20°−7° and lows 4°−16°, with 7.4 in187 mm of precipitation and 48 in121 cm of snow in a typical December.
- Record high
- 47°8° (2001)
- Record low
- −41° (1962)
- Heating degree days
- 1649
- Cooling degree days
- 0