Fallston, MD climate
Fallston has chilly, snowy winters and warm summers. A typical July afternoon reaches 87°, a January night drops to 24°, and about 34 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Fallston feels like
Winter
Spring
Summer
Fall
Fallston weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 41° | 24° | 3.3" | 9.7" | 12 | 9 | 24° – 40° |
| February | 44° | 25° | 2.8" | 10.8" | 11 | 10 | 23° – 41° |
| March | 53° | 32° | 4.3" | 6.3" | 12 | 5 | 36° – 51° |
| April | 65° | 42° | 3.6" | 0.5" | 13 | 0 | 49° – 58° |
| May | 75° | 52° | 4.0" | 0 | 14 | 0 | 59° – 69° |
| June | 83° | 61° | 4.4" | 0 | 12 | 0 | 69° – 77° |
| July | 87° | 66° | 4.6" | 0 | 12 | 0 | 72° – 81° |
| August | 85° | 65° | 4.3" | 0 | 11 | 0 | 71° – 77° |
| September | 78° | 58° | 4.8" | 0 | 10 | 0 | 65° – 72° |
| October | 67° | 46° | 4.1" | 0.2" | 10 | 0 | 53° – 63° |
| November | 55° | 36° | 3.5" | 1.0" | 10 | 1 | 40° – 50° |
| December | 46° | 29° | 3.9" | 5.6" | 11 | 5 | 30° – 47° |
| Year | 65° | 45° | 47.4" | 34.1" | 137 | 30 |
“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 Fallston
Fallston gets 47 inches of rain and melted snow a year. September is the wettest month and February the driest. Rain or snow falls on about 137 days a year. Snow covers the ground about 30 days of the year.
About 217 frost-free days a year
In half of years the last 32° night comes by April 3 and the first one by November 6. That leaves about 217 frost-free days for gardens, longer than 81% of U.S. towns.
Heating and cooling a home in Fallston
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Fallston, 79% of that work is heating and 21% is cooling.
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.
Fallston and its neighbors
Fallston borders 1 town with climate data. January nights across them vary by 0.2°. Bel Air North has both the coldest January nights (24°) and the hottest July afternoons (87°). Fallston’s January low is 24° and its July high 87°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Fallston 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 Fallston averaged 1.7° warmer than the 1900s. The biggest change is in December (+2.9°). The shift is larger than in 80% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Fallston’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 23° to 41°. August is the most reliable, staying within 6°.
Common questions about Fallston’s climate
What is the coldest month in Fallston?
January, with a typical high of 41° and a low of 24°.
What is the hottest month in Fallston?
July, with a typical high of 87° and a low of 66°. About 37 days a year reach 90°.
How much snow does Fallston get?
About 34 inches in a normal winter, most of it in February.
When is the first frost in Fallston?
In half of years the first 32° night comes by November 6, and the last spring frost by April 3.
What is the rainiest month in Fallston?
September, with 4.8 inches of rain and melted snow. The year totals 47 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Fallston itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Millers 4 Ne, MD (23 mi, snow) and Conowingo Dam, MD (16 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.