Castine Weather in March
Average highs run from 35°F on March 1 to 45°F on March 31, and lows from 16°F to 26°F. Normal precipitation for the month is 4.12 in over about 8 wet days.
March day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
March at a glance
- Average high
- 40°F
- Average low
- 20°F
- Precipitation
- 4.12 in
- Snowfall
- 11.7 in
- Record high
- 82°FMar 22, 2012
- Record low
- -6°FMar 1, 2015
- Chance of a freeze
- 100%
- Daylight
- 11 h 11 min to 12 h 43 min
- Cloud cover
- 65%
- Humidity
- 85%
- Dew point
- 26°F
- Wind
- 7.6 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Mar 1 | 35°F | 16°F | 47°F 2017 | -6°F 2015 | 26% | 14% |
| Mar 2 | 36°F | 16°F | 47°F 2016 | -4°F 2026 | 26% | 14% |
| Mar 3 | 36°F | 16°F | 57°F 2020 | -4°F 2026 | 26% | 14% |
| Mar 4 | 36°F | 17°F | 52°F 2024 | -6°F 2014 | 26% | 13% |
| Mar 5 | 36°F | 17°F | 46°F 2020 | 3°F 2022 | 26% | 13% |
| Mar 6 | 37°F | 17°F | 51°F 2024 | -6°F 2015 | 26% | 13% |
| Mar 7 | 37°F | 17°F | 46°F 2012 | -5°F 2019 | 26% | 12% |
| Mar 8 | 37°F | 18°F | 55°F 2012 | -3°F 2019 | 26% | 12% |
| Mar 9 | 37°F | 18°F | 57°F 2020 | 10°F 2019 | 26% | 12% |
| Mar 10 | 38°F | 18°F | 61°F 2026 | 5°F 2019 | 26% | 12% |
| Mar 11 | 38°F | 19°F | 52°F 2015 | 0°F 2017 | 26% | 11% |
| Mar 12 | 38°F | 19°F | 62°F 2012 | 0°F 2017 | 26% | 11% |
| Mar 13 | 39°F | 19°F | 55°F 2016 | 9°F 2017 | 26% | 11% |
| Mar 14 | 39°F | 20°F | 48°F 2020 | 0°F 2014 | 26% | 10% |
| Mar 15 | 39°F | 20°F | 48°F 2022 | 8°F 2021 | 26% | 10% |
| Mar 16 | 40°F | 20°F | 50°F 2016 | 4°F 2021 | 26% | 10% |
| Mar 17 | 40°F | 21°F | 57°F 2012 | 2°F 2014 | 26% | 10% |
| Mar 18 | 40°F | 21°F | 64°F 2022 | 3°F 2014 | 26% | 9% |
| Mar 19 | 40°F | 21°F | 66°F 2012 | 4°F 2018 | 26% | 9% |
| Mar 20 | 41°F | 22°F | 61°F 2012 | 7°F 2015 | 26% | 9% |
| Mar 21 | 41°F | 22°F | 80°F 2012 | 18°F 2013 | 26% | 9% |
| Mar 22 | 42°F | 22°F | 82°F 2012 | 9°F 2015 | 26% | 8% |
| Mar 23 | 42°F | 23°F | 65°F 2012 | 6°F 2015 | 26% | 8% |
| Mar 24 | 42°F | 23°F | 55°F 2021 | 5°F 2014 | 27% | 8% |
| Mar 25 | 43°F | 23°F | 49°F 2021 | 5°F 2014 | 27% | 7% |
| Mar 26 | 43°F | 24°F | 53°F 2020 | 16°F 2019 | 27% | 7% |
| Mar 27 | 43°F | 24°F | 51°F 2018 | 14°F 2014 | 27% | 7% |
| Mar 28 | 44°F | 24°F | 51°F 2020 | 15°F 2026 | 27% | 7% |
| Mar 29 | 44°F | 25°F | 53°F 2013 | 15°F 2026 | 28% | 6% |
| Mar 30 | 45°F | 25°F | 54°F 2013 | 21°F 2025 | 28% | 6% |
| Mar 31 | 45°F | 26°F | 56°F 2016 | 20°F 2023 | 28% | 6% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- March 1
- sunrise 6:12 AM, sunset 5:23 PM
- March 31
- sunrise 6:18 AM, sunset 7:01 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00170480 (Belfast), public domain. Records: NOAA GHCN-Daily, station USC00172443, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.