Osborn, ME climate
Osborn has cold winters and pleasant summers, with plenty of rain. A typical July afternoon reaches 79°, a January night drops to 10°.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Osborn feels like
Winter
Spring
Summer
Fall
Osborn weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 29° | 10° | 4.0" | 10° – 27° |
| February | 32° | 12° | 3.1" | 9° – 27° |
| March | 40° | 21° | 3.9" | 24° – 38° |
| April | 52° | 32° | 4.1" | 39° – 47° |
| May | 65° | 41° | 3.9" | 49° – 58° |
| June | 73° | 51° | 4.2" | 58° – 66° |
| July | 79° | 57° | 3.4" | 63° – 71° |
| August | 78° | 56° | 3.3" | 64° – 70° |
| September | 69° | 48° | 4.0" | 54° – 64° |
| October | 57° | 38° | 5.3" | 43° – 54° |
| November | 45° | 29° | 4.8" | 31° – 42° |
| December | 34° | 18° | 4.9" | 20° – 34° |
| Year | 54° | 34° | 48.9" |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Osborn
Osborn gets 49 inches of rain and melted snow a year. October is the wettest month and February the driest.
About 157 frost-free days a year
In half of years the last 32° night comes by May 1 and the first one by October 6. That leaves about 157 frost-free days for gardens, shorter than 74% of U.S. towns.
Heating and cooling a home in Osborn
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Osborn, 95% of that work is heating and 5% is cooling, so the furnace matters far more than the air conditioner.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
Osborn and its neighbors
Osborn borders 4 towns with climate data. January nights across them vary by 1.9°. Aurora has the coldest January nights (9°) and Mariaville the hottest July afternoons (80°). Osborn’s January low is 10° and its July high 79°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Osborn compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in Osborn averaged 1.7° warmer than the 1900s. The biggest change is in December (+3.7°). The shift is larger than in 81% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Osborn’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from 9° to 27°. August is the most reliable, staying within 6°.
Common questions about Osborn’s climate
What is the coldest month in Osborn?
January, with a typical high of 29° and a low of 10°.
What is the hottest month in Osborn?
July, with a typical high of 79° and a low of 57°. About 9 days a year reach 90°.
When is the first frost in Osborn?
In half of years the first 32° night comes by October 6, and the last spring frost by May 1.
What is the rainiest month in Osborn?
October, with 5.3 inches of rain and melted snow. The year totals 49 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Osborn itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Orono, ME (22 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.