Eustis, Maine climate: Climate normals at a NOAA weather station
Eustis's normal year runs from 2°F January nights to 76°F July afternoons, with 41.7 inches of precipitation and 119 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 3.9°C, January lows of −17°C, July highs of 24°C, 1,059 mm of precipitation a year.
- NOAA stationEustis
- Station IDUSC00172700
- Location45.21°N 70.47°W
- Elevation1,260 ft (384 m)
On October 23, the normal high in Eustis is 49°F and the normal low 31°F, and the chance of measurable rain or snow is 43%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Eustis.
- Jan 22° 2°
- Feb 25° 3°
- Mar 34° 13°
- Apr 47° 26°
- May 62° 37°
- Jun 71° 48°
- Jul 76° 53°
- Aug 74° 50°
- Sep 67° 42°
- Oct 52° 33°
- Nov 39° 23°
- Dec 28° 11°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like at Eustis each month?
July is the warmest month, with normal highs of 76°F; January the coldest, with normal lows of 2°F. The most precipitation falls in June (4.78 in), the least in February (2.43 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 22°F | 2°F | 12.0°F | 2.55 | 22.1 | 11 | <1 | 31 | 9 h 10 min |
| February | 25°F | 3°F | 13.9°F | 2.43 | 26.8 | 9 | <1 | 28 | 10 h 20 min |
| March | 34°F | 13°F | 23.2°F | 2.77 | 24.1 | 11 | <1 | 30 | 11 h 50 min |
| April | 47°F | 26°F | 36.5°F | 3.36 | 8.2 | 12 | <1 | 25 | 13 h 30 min |
| May | 62°F | 37°F | 49.5°F | 3.76 | 0.1 | 13 | <1 | 9 | 14 h 50 min |
| June | 71°F | 48°F | 59.2°F | 4.78 | 0.0 | 14 | <1 | <1 | 15 h 40 min |
| July | 76°F | 53°F | 64.2°F | 4.04 | 0.0 | 13 | 1 | <1 | 15 h 20 min |
| August | 74°F | 50°F | 62.3°F | 3.53 | 0.0 | 12 | <1 | <1 | 14 h 10 min |
| September | 67°F | 42°F | 54.5°F | 3.37 | 0.0 | 10 | <1 | 5 | 12 h 40 min |
| October | 52°F | 33°F | 42.7°F | 4.30 | 2.2 | 13 | <1 | 16 | 11 h |
| November | 39°F | 23°F | 31.2°F | 3.41 | 7.8 | 13 | <1 | 26 | 9 h 30 min |
| December | 28°F | 11°F | 19.5°F | 3.38 | 27.2 | 14 | <1 | 30 | 8 h 50 min |
| Year (annual) | 50°F | 28°F | 39.1°F | 41.68 | 118.5 | 145 | 2 | 201 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | −6°C | −17°C | −11.1°C | 65 mm | 56 cm |
| February | −4°C | −16°C | −10.1°C | 62 mm | 68 cm |
| March | 1°C | −11°C | −4.9°C | 70 mm | 61 cm |
| April | 8°C | −3°C | 2.5°C | 85 mm | 21 cm |
| May | 17°C | 3°C | 9.7°C | 96 mm | 0 cm |
| June | 22°C | 9°C | 15.1°C | 121 mm | 0 cm |
| July | 24°C | 11°C | 17.9°C | 103 mm | 0 cm |
| August | 24°C | 10°C | 16.8°C | 90 mm | 0 cm |
| September | 19°C | 6°C | 12.5°C | 86 mm | 0 cm |
| October | 11°C | 0°C | 5.9°C | 109 mm | 6 cm |
| November | 4°C | −5°C | −0.4°C | 87 mm | 20 cm |
| December | −2°C | −12°C | −6.9°C | 86 mm | 69 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00172700; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
Which months are mildest at Eustis?
Normal highs sit between 65°F and 85°F in June, July, August and September. Of those, September has the fewest days with rain (10).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00172700.
When is the last frost at Eustis?
In Eustis, the last spring frost (32°F) comes after May 24 in half of years and after June 6 in one year in ten; the first autumn frost comes before September 21 in half of years and before September 6 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- May 241 year in 10 after June 6; 9 in 10 after May 8
- First autumn frost, half of years before
- September 211 year in 10 before September 6; 9 in 10 before October 4
NOAA puts the median frost-free season at 118 days, and the season without a hard freeze (28°F) at 145 days.
A hard freeze (28°F) comes after May 10 in half of springs and before October 2 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Eustis in zone 4b in ZIP code 04982, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, the station is in zone 4b: the coldest night of a typical year reaches −23°F (27 complete years).
Frost dates for every NOAA station in Maine · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00172700; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get at Eustis?
In a normal year in Eustis, 2 days a year reach 90°F, 201 nights fall to 32°F or colder and 145 days bring measurable precipitation.
- Days at 90°F or more
- 2a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 201a normal year
- Days that stay below freezing
- 91high of 32°F or less
- Days with 0.01 inch of precipitation
- 145a normal year
- Days with 1 inch of snow or more
- 30a normal year
The highest temperature in this station's record (since 1942) is 98°F, on September 2, 1944; the lowest is −36°F, on February 8, 1993.
The wettest calendar year on that record is 2008, with 55.81 in; the snowiest season is 2000–01, with 215.3 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00172700; records: ACIS (NOAA Regional Climate Centers), station USC00172700. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Eustis?
Over a year 66% of the sunlight that would reach the ground under clear skies gets through the clouds at Eustis, 3.4 kWh per square metre a day. September is the sunniest month (72%) and December the cloudiest (51%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 59% | 1.4 |
| February | 62% | 2.2 |
| March | 65% | 3.4 |
| April | 65% | 4.4 |
| May | 64% | 5.0 |
| June | 67% | 5.5 |
| July | 71% | 5.5 |
| August | 72% | 4.9 |
| September | 72% | 3.9 |
| October | 60% | 2.3 |
| November | 56% | 1.4 |
| December | 51% | 1.0 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How many heating and cooling degree days does Eustis record?
A normal year at Eustis brings 9,565 heating degree days, 78% more than the median U.S. place (5,373), and 144 cooling degree days, 84% fewer than the median (908). Nine months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 1,416 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,643 | 0 |
| February | 1,431 | 0 |
| March | 1,297 | 0 |
| April | 854 | 0 |
| May | 484 | 4 |
| June | 200 | 27 |
| July | 88 | 63 |
| August | 120 | 38 |
| September | 328 | 11 |
| October | 693 | 0 |
| November | 1,016 | 0 |
| December | 1,412 | 0 |
| Year (annual) | 9,565 | 144 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00172700. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Have recent years at Eustis been warmer than normal?
Over 30 complete years from 1986 to 2017, the station's annual mean temperature rose at a fitted 3.9°F per century (+0.21°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Eustis's climate compare?
Eustis is warmer than 3 of the 42 places with their own NOAA record in Maine, and wetter than 5. Across the 7,247 U.S. stations with normals, its annual mean of 39.1°F is warmer than 4%.
In the Köppen classification computed from these normals, Eustis is Dfb: continental, no dry season, warm summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Questions about Eustis's climate
What is the coldest month at Eustis?
January, with a normal high of 22°F and a normal low of 2°F. The warmest is July (76°F by day, 53°F at night).
Does it snow at Eustis?
Yes: 119 inches in a normal year, falling on 49 days with 0.1 inch or more, the most in December (27.2 inches).
What is the rainiest month at Eustis?
June, with 4.78 in of precipitation in a normal year; the driest is February with 2.43 in.
What plant hardiness zone is Eustis in?
The USDA's 2023 map puts Eustis in zone 4b in ZIP code 04982, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches −23°F (27 years, 1991-2020): zone 4b.
How late can frost come at Eustis?
In half of years the last 32°F night comes after May 24; in one year in ten it comes after June 6. Waiting until June 6 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Maine climateThe statewide normals and every place in the state
- Long Falls Dam, ME14 miles from this station, 40.7°F a year
- Rangeley, ME19 miles from this station, 39.3°F a year
- Jackman, ME31 miles from this station, 39.2°F a year
- Middle Dam, ME37 miles from this station, 40.3°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made