Nyssa, OR climate
Nyssa has chilly winters and hot summers, with very little rain. A typical July afternoon reaches 93°, a January night drops to 23°, and about 8 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Nyssa feels like
Winter
Spring
Summer
Fall
Nyssa 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 | 38° | 23° | 1.3" | 3.3" | 8 | 17° – 36° |
| February | 47° | 27° | 0.8" | 1.2" | 6 | 26° – 44° |
| March | 58° | 32° | 1.0" | 0.2" | 8 | 40° – 50° |
| April | 66° | 37° | 0.9" | 0 | 7 | 46° – 56° |
| May | 75° | 46° | 1.3" | 0 | 7 | 55° – 66° |
| June | 83° | 52° | 0.7" | 0 | 5 | 63° – 76° |
| July | 93° | 59° | 0.2" | 0 | 2 | 66° – 81° |
| August | 92° | 56° | 0.1" | 0 | 1 | 68° – 77° |
| September | 81° | 47° | 0.4" | 0 | 3 | 61° – 68° |
| October | 66° | 36° | 0.8" | 0 | 5 | 44° – 57° |
| November | 50° | 28° | 1.0" | 0.8" | 8 | 31° – 44° |
| December | 39° | 23° | 1.4" | 2.8" | 9 | 21° – 37° |
| Year | 66° | 39° | 9.8" | 8.3" | 68 |
“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 Nyssa
Nyssa gets 10 inches of rain and melted snow a year. December is the wettest month and August the driest. Rain or snow falls on about 68 days a year.
About 182 frost-free days a year
In half of years the last 32° night comes by April 18 and the first one by October 18. That leaves about 182 frost-free days for gardens, longer than 55% of U.S. towns.
Heating and cooling a home in Nyssa
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Nyssa, 86% of that work is heating and 14% 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.
How Nyssa 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 Nyssa averaged 1.4° warmer than the 1900s. The biggest change is in January (+3.2°). The shift is larger than in 63% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Nyssa’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. January swings the most: between 1991 and 2020 its average temperature ranged from 17° to 36°. September is the most reliable, staying within 8°.
Common questions about Nyssa’s climate
What is the coldest month in Nyssa?
December, with a typical high of 39° and a low of 23°.
What is the hottest month in Nyssa?
July, with a typical high of 93° and a low of 59°. About 56 days a year reach 90°.
How much snow does Nyssa get?
About 8 inches in a normal winter, most of it in January.
When is the first frost in Nyssa?
In half of years the first 32° night comes by October 18, and the last spring frost by April 18.
What is the rainiest month in Nyssa?
December, with 1.4 inches of rain and melted snow. The year totals 10 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Nyssa itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Nyssa, OR (1 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.