Mount Kisco, NY climate
Mount Kisco has chilly, snowy winters and warm summers, with plenty of rain. A typical July afternoon reaches 84°, a January night drops to 21°, and about 34 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Mount Kisco feels like
Winter
Spring
Summer
Fall
Mount Kisco 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 | 30-yr range |
|---|---|---|---|---|---|---|
| January | 37° | 21° | 3.5" | 9.1" | 11 | 21° – 36° |
| February | 40° | 22° | 2.8" | 11.9" | 8 | 18° – 37° |
| March | 48° | 29° | 4.0" | 5.9" | 10 | 32° – 48° |
| April | 61° | 39° | 4.0" | 0.5" | 12 | 45° – 54° |
| May | 71° | 49° | 4.0" | 0 | 12 | 56° – 65° |
| June | 79° | 58° | 4.6" | 0 | 12 | 66° – 72° |
| July | 84° | 64° | 4.6" | 0 | 9 | 69° – 78° |
| August | 82° | 62° | 4.4" | 0 | 9 | 68° – 76° |
| September | 75° | 55° | 4.6" | 0 | 9 | 62° – 70° |
| October | 64° | 44° | 4.6" | 0 | 10 | 50° – 61° |
| November | 52° | 35° | 3.6" | 0.8" | 10 | 39° – 48° |
| December | 42° | 26° | 4.0" | 5.8" | 11 | 27° – 45° |
| Year | 61° | 42° | 48.5" | 34.0" | 124 |
“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 Mount Kisco
Mount Kisco gets 49 inches of rain and melted snow a year. July is the wettest month and February the driest. Rain or snow falls on about 124 days a year.
About 200 frost-free days a year
In half of years the last 32° night comes by April 12 and the first one by October 31. That leaves about 200 frost-free days for gardens, longer than 72% of U.S. towns.
Heating and cooling a home in Mount Kisco
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Mount Kisco, 87% of that work is heating and 13% 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.
Mount Kisco and its neighbors
Mount Kisco borders 2 towns with climate data. January nights across them vary by 0.6°. Bedford has the coldest January nights (20°) and New Castle the hottest July afternoons (84°). Mount Kisco’s January low is 21° and its July high 84°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Mount Kisco 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 Mount Kisco averaged 2.1° warmer than the 1900s. The biggest change is in December (+3.6°). The shift is larger than in 95% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Mount Kisco’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 18° to 37°. June is the most reliable, staying within 6°.
Common questions about Mount Kisco’s climate
What is the coldest month in Mount Kisco?
January, with a typical high of 37° and a low of 21°.
What is the hottest month in Mount Kisco?
July, with a typical high of 84° and a low of 64°. About 10 days a year reach 90°.
How much snow does Mount Kisco get?
About 34 inches in a normal winter, most of it in February.
When is the first frost in Mount Kisco?
In half of years the first 32° night comes by October 31, and the last spring frost by April 12.
What is the rainiest month in Mount Kisco?
July, with 4.6 inches of rain and melted snow. The year totals 49 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Mount Kisco itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Stamford 5 N, CT (11 mi, snow) and Westchester Co Airport, NY (9 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.