York, SD climate
York has cold, snowy winters and pleasant summers. A typical July afternoon reaches 81°, a January night drops to 3°, and about 42 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in York feels like
Winter
Spring
Summer
Fall
York 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 | 20° | 3° | 0.6" | 6.1" | 8 | -1° – 25° |
| February | 25° | 7° | 0.7" | 9.2" | 7 | 1° – 28° |
| March | 38° | 19° | 1.0" | 7.5" | 7 | 19° – 43° |
| April | 53° | 31° | 2.1" | 4.5" | 9 | 32° – 50° |
| May | 66° | 44° | 3.2" | 0 | 12 | 51° – 62° |
| June | 76° | 55° | 4.0" | 0 | 12 | 60° – 69° |
| July | 81° | 60° | 3.7" | 0 | 9 | 62° – 77° |
| August | 79° | 58° | 2.6" | 0 | 10 | 63° – 72° |
| September | 71° | 48° | 2.5" | 0 | 9 | 53° – 65° |
| October | 56° | 35° | 2.3" | 1.1" | 9 | 37° – 50° |
| November | 39° | 21° | 0.7" | 3.6" | 6 | 18° – 41° |
| December | 25° | 9° | 0.7" | 9.8" | 8 | 3° – 24° |
| Year | 52° | 32° | 24.0" | 41.8" | 105 |
“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 York
York gets 24 inches of rain and melted snow a year. June is the wettest month and January the driest. Rain or snow falls on about 105 days a year.
About 156 frost-free days a year
In half of years the last 32° night comes by May 4 and the first one by October 6. That leaves about 156 frost-free days for gardens, shorter than 75% of U.S. towns.
Heating and cooling a home in York
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In York, 94% of that work is heating and 6% 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.
York and its neighbors
York borders 4 towns with climate data. January nights across them vary by 0.9°. Butler has the coldest January nights (2°) and Cottonwood the hottest July afternoons (81°). York’s January low is 3° and its July high 81°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How York 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 York averaged 1.0° warmer than the 1900s. The biggest change is in December (+2.9°). The shift is smaller than in 66% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at York’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 1° to 28°. August is the most reliable, staying within 9°.
Common questions about York’s climate
What is the coldest month in York?
January, with a typical high of 20° and a low of 3°.
What is the hottest month in York?
July, with a typical high of 81° and a low of 60°. About 7 days a year reach 90°.
How much snow does York get?
About 42 inches in a normal winter, most of it in December.
When is the first frost in York?
In half of years the first 32° night comes by October 6, and the last spring frost by May 4.
What is the rainiest month in York?
June, with 4.0 inches of rain and melted snow. The year totals 24 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for York itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Bristol 7s, SD (5 mi, snow) and Webster, SD (11 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.