Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Randolph experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 20°F in January while summers reach 70°F in July. The area gets 251 sunny days per year, above the national average. Annual precipitation totals 47.7 inches (wetter than the 38-inch national average). The area receives 68.9 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 34. The city sits at an elevation of 132 feet.
Temperature
20°F Jan (-7°C)70°F Jul (21°C)
Annual Average
45.8°F
15% below US avg
January Average
20°F (-7°C)
July Average
70°F (21°C)
Sunny Days
251 days/yr
Geography
Elevation
132 ft (40 m)
Area
2.2 sq mi (5.8 km²)
Population Density
691/sq mi
Coordinates
44.2373°N, 69.7512°W
Timezone
America/New_York
County
Kennebec County County
Nearest Airport
Knox County Regional (RKD) 35 miles away
Precipitation & Snow
Annual Rainfall47.7"
26% above US avg
Snowfall68.9"
Wettest Month (Nov)4.29"
Driest Month (Feb)2.87"
Air Quality
AQI Median
34.0
Rating
Good
Natural Hazard Risk
Overall Risk
Relatively Low
Risk Score
75.2 / 100
Social Vulnerability
29.4 / 100
Community Resilience
90.9 / 100
Hazard Breakdown
Tornado
Very Low
Hurricane
Relatively Moderate
Earthquake
Relatively Low
Wildfire
Very Low
Flood
Relatively Moderate
Hail
Relatively Low
Strong Wind
Relatively Moderate
Heat Wave
Very Low
Winter Weather
Very High
Lightning
Relatively High
Ice Storm
Very High
Drought
Relatively Moderate
Cold Wave
Relatively Low
Landslide
Relatively Low
Coastal Flood
Relatively Low
Avalanche
Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
36 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M4.7.
Oct 16, 2012
5 km W of Hollis Center, Maine
M4.7
102 km
16 km
Jan 27, 2025
9 km SE of York Harbor, Maine
M3.8
146 km
11 km
Aug 21, 1996
12 km N of Livermore, New Hampshire
M3.8
128 km
10 km
Feb 26, 1999
0 km NW of China, Maine
M3.8
33 km
3 km
Jan 17, 2000
4 km NNE of Dixfield, Maine
M3.6
66 km
16 km
Jan 3, 2000
4 km W of Leeds, Maine
M3.5
34 km
10 km
Jan 14, 2023
7 km ESE of Dedham, Maine
M3.3
105 km
10 km
Oct 25, 2001
4 km S of Howland, Maine
M3.3
137 km
9 km
Sep 7, 2000
7 km WSW of Liberty, Maine
M3.2
32 km
5 km
Sep 5, 1994
13 km NNE of Monhegan, Maine
M3.1
59 km
5 km
Dec 25, 1999
4 km NE of Saint Albans, Maine
M3.0
84 km
5 km
Mar 30, 2010
7 km WSW of Dedham, Maine
M3.0
93 km
4 km
Nov 20, 1994
4 km WNW of Norway, Maine
M3.0
68 km
5 km
Jun 7, 2010
29 km SE of York Beach, Maine
M2.9
143 km
10 km
Feb 4, 2022
0 km SSW of Gorham, New Hampshire
M2.9
115 km
8 km
Apr 25, 2023
4 km SW of Center Sandwich, New Hampshire
M2.9
147 km
8 km
Jul 28, 2024
6 km W of Gardiner, Maine
M2.8
9 km
8 km
Feb 12, 1995
1 km NNE of Turner, Maine
M2.8
40 km
5 km
Mar 9, 2008
25 km SE of York Beach, Maine
M2.8
144 km
0 km
Jan 17, 2018
3 km E of Richmond, Maine
M2.7
16 km
9 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
2 hurricanes (Category 1+) recorded within 500 km since 1980.
Strongest on record: Category 1.
Year
Name
Category
Max Wind
Closest
2008
Kyle
Category 1
81 mph
288 km
1991
Bob
Category 1
—
192 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
70 tornadoes (EF0+) recorded within 100 km since 1950.
Strongest on record: EF2. Total: 7 injuries.
Date
Rating
Distance
Path
Fatalities
Aug 9, 2000
EF2
66 km
3.0 mi
0
Jul 8, 1996
EF2
18 km
1.5 mi
0
Nov 7, 1971
EF2
57 km
4.1 mi
0
Jul 31, 1971
EF2
49 km
1.9 mi
0
Jul 31, 1971
EF2
26 km
2.0 mi
0
Jul 31, 1971
EF2
36 km
0.5 mi
0
Aug 20, 1962
EF2
89 km
0.1 mi
0
Sep 4, 1961
EF2
63 km
0.5 mi
0
Jul 1, 2017
EF1
87 km
0.3 mi
0
Jul 1, 2017
EF1
88 km
1.5 mi
0
Jul 1, 2017
EF1
80 km
2.5 mi
0
Jul 28, 2014
EF1
98 km
1.7 mi
0
Jul 15, 2014
EF1
80 km
2.8 mi
0
Jun 1, 2011
EF1
78 km
8.4 mi
0
Jun 1, 2011
EF1
76 km
0.3 mi
0
Jun 5, 2010
EF1
57 km
4.2 mi
0
Aug 21, 2009
EF1
67 km
16.4 mi
0
Nov 24, 2005
EF1
47 km
3.8 mi
0
May 31, 2002
EF1
66 km
2.1 mi
0
Jun 17, 2001
EF1
86 km
0.4 mi
0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Tsunami History
1 tsunami recorded within 500 km.
Highest wave on record: 3.6 m (12 ft).
Year
Location
Cause
Max Wave
Deaths
Distance
2008
MAINE
Avalanche
3.6 m
—
49 km
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
20°F (-7°C)
3.4 in
Coldest
February
22°F (-6°C)
2.9 in
Driest
March
32°F (-0°C)
3.9 in
April
43°F (6°C)
3.9 in
May
54°F (12°C)
3.8 in
June
63°F (17°C)
3.7 in
July
70°F (21°C)
3.3 in
Warmest
August
67°F (20°C)
3.4 in
September
59°F (15°C)
3.5 in
October
48°F (9°C)
4.0 in
November
37°F (3°C)
4.3 in
Wettest
December
25°F (-4°C)
3.9 in
Randolph has a seasonal temperature swing of 50°F / from 20°F in January to 70°F in July. Total annual precipitation is 43.7 inches, with November being the wettest month (4.3") and February the driest (2.9").