Climate Comfort Score
47/100
Moderate
30-year climate normals from 1 weather station (1991-2020).
Durham, Maine has an average annual temperature of 44°F and a climate comfort score of 47/100 (Moderate). Annual precipitation totals 49.7", including 77.5" of snow. Based on NOAA 30-year normals (1991–2020).
Avg Temperature
44°F (7°C)
Avg High
55°F
Avg Low
33°F
Annual Precip
49.7"
Annual Snow
77.5"
Comfort Score
47/100
Moderate
Climate Comfort Score
47/100
Moderate
Avg Annual Temperature
44°F
30-year mean (NOAA NCEI)
Annual Precipitation
49.7"
Plus 77.5" of snow
PlainClimate composite — temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Durham area.
How the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Durham captures average conditions across the spread shown — the most recent decade is warmer than the 30-year mean.
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 29°F (-1°C) | 8°F (-14°C) | 18°F (-8°C) | 3.6" | 20.8" | 30.5 | 0.0 |
| February | 33°F (0°C) | 9°F (-13°C) | 21°F (-6°C) | 3.4" | 19.4" | 27.3 | 0.0 |
| March | 41°F (5°C) | 19°F (-7°C) | 30°F (-1°C) | 4.1" | 13.8" | 28.4 | 0.0 |
| April | 54°F (12°C) | 30°F (-1°C) | 42°F (5°C) | 4.5" | 3.7" | 20.1 | 0.0 |
| May | 65°F (19°C) | 40°F (4°C) | 53°F (11°C) | 3.6" | 0.0" | 4.7 | 0.3 |
| June | 74°F (23°C) | 50°F (10°C) | 62°F (17°C) | 4.6" | 0.0" | 0.0 | 1.0 |
| July | 79°F (26°C) | 56°F (13°C) | 68°F (20°C) | 3.8" | 0.0" | 0.0 | 1.5 |
| August | 78°F (25°C) | 54°F (12°C) | 66°F (19°C) | 3.6" | 0.0" | 0.0 | 1.4 |
| September | 70°F (21°C) | 47°F (8°C) | 59°F (15°C) | 4.2" | 0.0" | 1.0 | 0.3 |
| October | 58°F (15°C) | 36°F (2°C) | 47°F (8°C) | 5.4" | 0.3" | 11.5 | 0.0 |
| November | 46°F (8°C) | 27°F (-3°C) | 36°F (2°C) | 4.5" | 3.3" | 22.8 | 0.0 |
| December | 35°F (2°C) | 16°F (-9°C) | 26°F (-4°C) | 4.5" | 16.2" | 29.4 | 0.0 |
Average monthly rainfall and snowfall
Snow: 20.8"
11.4 days with precipitation
Snow: 19.4"
10.1 days with precipitation
Snow: 13.8"
10.7 days with precipitation
Snow: 3.7"
11.7 days with precipitation
13.2 days with precipitation
13.7 days with precipitation
12.0 days with precipitation
10.9 days with precipitation
9.7 days with precipitation
Snow: 0.3"
12.2 days with precipitation
Snow: 3.3"
11.4 days with precipitation
Snow: 16.2"
12.6 days with precipitation
First Fall Freeze
October 2
50% probability date
Last Spring Freeze
May 15
50% probability date
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,921
Higher = more heating needed
Cooling Degree Days
257
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
The NOAA 1991–2020 climate normals describe Durham, Maine as a location with an annual average temperature of 44°F, ranging from a mean daily high of 55°F to a mean daily low of 33°F. July is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USC00172048, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.
Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Durham receives roughly 49.7 inches of precipitation each year, with 77.5 inches typically falling as snow. Growing-season length varies with elevation and microclimate, with the last spring freeze near May 15 and the first fall freeze near October 2. For energy use, 7,921 heating degree days and 257 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Durham scores 47/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Use the monthly tables above to plan around specific windows — shoulder seasons for mild highs and lows, peak summer for July-driven heat, or deep winter for January-driven cold. All figures here are thirty-year averages: any single year may run warmer, wetter, drier, or cooler than the normal, so treat them as planning guidance rather than forecasts.
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00172048. For informational purposes only.
Read our methodology — how this data is sourced, computed, and verified.