Caribou weather in May: Caribou, Maine: normal highs, lows, rain and records for May
Caribou in May has a normal high of 63°F and a normal low of 41°F, a daily mean of 52°F, rising from 56°F on the 1st to 68°F by the 31st. Measurable precipitation falls on 15 days in a normal May, 3.46 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 17°C and low of 5°C, 88 mm of precipitation and 2 cm of snow in May.
- NOAA stationCaribou Weather Office
- Station IDUSW00014607
- Location46.87°N 68.02°W
- Elevation624 ft (190 m)
- Population7,328
- Jan 21° 3°
- Feb 24° 4°
- Mar 34° 16°
- Apr 48° 29°
- May 63° 41°
- Jun 72° 51°
- Jul 77° 56°
- Aug 76° 54°
- Sep 67° 46°
- Oct 53° 36°
- Nov 40° 26°
- Dec 28° 12°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Caribou in May?
The normal high is 63°F and the normal low 41°F, for a daily mean of 52.2°F. May is 13.7°F warmer than April and 9.2°F cooler than June. May is the 5th warmest month of the year in Caribou and the 6th wettest. Across the month the normal high rises 12°F, from 56°F on May 1 to 68°F on May 31. From one year to the next May's mean temperature typically moves about 2.6°F either way (NOAA's standard deviation), so roughly two Mays in three average between 50°F and 55°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 46%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| May 1 | 56°F | 36°F | 44% | 26% |
| May 8 | 60°F | 39°F | 45% | 26% |
| May 15 | 63°F | 41°F | 46% | 27% |
| May 22 | 66°F | 43°F | 46% | 27% |
| May 31 | 68°F | 46°F | 46% | 26% |
Every day of May: normal high, low and chance of precipitation (warmest afternoon May 31, coldest night May 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| May 1 | 56°F | 36°F | 44% | 26% | 14 h 20 min |
| May 2 | 57°F | 37°F | 44% | 26% | 14 h 20 min |
| May 3 | 57°F | 37°F | 44% | 26% | 14 h 30 min |
| May 4 | 58°F | 38°F | 45% | 26% | 14 h 30 min |
| May 5 | 59°F | 38°F | 45% | 26% | 14 h 30 min |
| May 6 | 59°F | 38°F | 45% | 26% | 14 h 40 min |
| May 7 | 60°F | 39°F | 45% | 26% | 14 h 40 min |
| May 8 | 60°F | 39°F | 45% | 26% | 14 h 40 min |
| May 9 | 60°F | 39°F | 45% | 26% | 14 h 40 min |
| May 10 | 61°F | 40°F | 46% | 26% | 14 h 50 min |
| May 11 | 61°F | 40°F | 46% | 26% | 14 h 50 min |
| May 12 | 62°F | 40°F | 46% | 26% | 14 h 50 min |
| May 13 | 62°F | 41°F | 46% | 27% | 15 h |
| May 14 | 63°F | 41°F | 46% | 27% | 15 h |
| May 15 | 63°F | 41°F | 46% | 27% | 15 h |
| May 16 | 63°F | 42°F | 46% | 27% | 15 h |
| May 17 | 64°F | 42°F | 46% | 27% | 15 h 10 min |
| May 18 | 64°F | 42°F | 46% | 27% | 15 h 10 min |
| May 19 | 65°F | 42°F | 46% | 27% | 15 h 10 min |
| May 20 | 65°F | 43°F | 46% | 27% | 15 h 10 min |
| May 21 | 65°F | 43°F | 46% | 27% | 15 h 10 min |
| May 22 | 66°F | 43°F | 46% | 27% | 15 h 20 min |
| May 23 | 66°F | 44°F | 46% | 27% | 15 h 20 min |
| May 24 | 66°F | 44°F | 46% | 27% | 15 h 20 min |
| May 25 | 67°F | 44°F | 46% | 27% | 15 h 20 min |
| May 26 | 67°F | 44°F | 46% | 26% | 15 h 20 min |
| May 27 | 67°F | 45°F | 46% | 26% | 15 h 30 min |
| May 28 | 67°F | 45°F | 46% | 26% | 15 h 30 min |
| May 29 | 68°F | 45°F | 46% | 26% | 15 h 30 min |
| May 30 | 68°F | 46°F | 46% | 26% | 15 h 30 min |
| May 31 | 68°F | 46°F | 46% | 26% | 15 h 30 min |
- Normal high
- 63°FMay average
- Normal low
- 41°FMay average
- Precipitation
- 3.46 inmonth total
- Days with precipitation
- 150.01 inch or more
- Snowfall
- 0.8 inmonth total
- Nights at 32°F or colder
- 4
- Daylight
- 14 h 20 min to 15 h 30 minMay 1 to May 31
- Days at 70°F or more
- 8
- Days at 80°F or more
- 2
- Sunshine
- 65%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014607; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Caribou in May?
On a given May day the chance of 0.01 inch or more is 46% on average, highest around May 25 (46%). In all, 3.46 in falls on 15 days of a normal May.
In a normal May in Caribou, 4 nights fall to freezing and snowfall averages 0.8 inches.
Snow falls on 1 day in a normal May.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014607.
How humid and windy is Caribou in May?
At 3 p.m. the normal temperature is 64°F with 48% relative humidity and a dew point of 44°F; at 6 a.m. it is 50°F with 80% humidity. The wind averages 7.2 mph, most often from the west-northwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 50°F | 44°F | 80% | 6.5 mph | 49% |
| 9 a.m. | 57°F | 45°F | 63% | 8.4 mph | 44% |
| noon | 62°F | 45°F | 52% | 9.4 mph | 39% |
| 3 p.m. | 64°F | 44°F | 48% | 9.3 mph | 38% |
| 6 p.m. | 62°F | 44°F | 53% | 7.8 mph | 45% |
| 9 p.m. | 55°F | 45°F | 68% | 5.8 mph | 50% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014607. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for May in Caribou?
The warmest May temperature on Caribou's official record (since 1939) is 96°F, on May 22, 1977; the coldest is 18°F, on May 2, 1974. The wettest May brought 6.27 in (1947); the snowiest, 10.9 inches (1967).
The May mean against the 1991-2020 normal of 52.2°F: 2021 52.6°F (+0.4), 2022 54.4°F (+2.2), 2023 51.7°F (−0.5), 2024 56.4°F (+4.2), 2025 52.2°F (at normal), 2026 50.0°F (−2.2). 3 of 6 ran warmer than normal.
| May | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 52.6°F | +0.4°F | 3.51 in |
| 2022 | 54.4°F | +2.2°F | 3.46 in |
| 2023 | 51.7°F | −0.5°F | 2.79 in |
| 2024 | 56.4°F | +4.2°F | 2.71 in |
| 2025 | 52.2°F | at normal | 5.04 in |
| 2026 | 50.0°F | −2.2°F | 5.04 in |
Source: records: ACIS, NWS threaded record CARthr; recent months: ACIS, station USW00014607. Records and recent months use complete months only.
How does May in Caribou compare across Maine?
Across the 42 places PlainClimate covers in Maine, May normal highs run from 60°F in Eastport to 68°F in Fryeburg; Caribou's is 63°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.