Climate Comfort Score
47/100
Moderate
2026 data Public-data reference. official source
Washington IS, WI Climate
Temperature, precipitation, and comfort score from NOAA NCEI 1991-2020 normals →
30-year climate normals from 1 weather station (1991-2020).
Washington IS, Wisconsin has an average annual temperature of 43°F and a climate comfort score of 47/100 (Moderate). Annual precipitation totals 30.2", including 58.8" of snow. Based on NOAA 30-year normals (1991–2020).
Avg Temperature
43°F (6°C)
Avg High
51°F
Avg Low
35°F
Annual Precip
30.2"
Annual Snow
58.8"
Comfort Score
47/100
Moderate
Avg Annual Temperature
43°F
30-year mean (NOAA NCEI)
Annual Precipitation
30.2"
Plus 58.8" of snow
Comfort score vs national 100-point ceiling (Washington IS) 47.0%
National median (≈55)
PlainClimate composite — temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Washington IS area.
Warming context for Washington IS
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Washington IS captures average conditions across the spread shown — the most recent decade is warmer than the 30-year mean.
- United States land mean (NOAA NCEI) +0.11 °C/decade
- Global anomaly (NASA GISTEMP) +0.11 °C/decade
- Paris Agreement thresholds 1.5°C / 2.0°C
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 26°F (-4°C) | 11°F (-12°C) | 18°F (-8°C) | 1.6" | 15.0" | 30.2 | 0.0 |
| February | 28°F (-2°C) | 11°F (-12°C) | 19°F (-7°C) | 1.1" | 13.0" | 27.0 | 0.0 |
| March | 36°F (2°C) | 20°F (-7°C) | 28°F (-2°C) | 1.7" | 9.5" | 26.5 | 0.0 |
| April | 47°F (9°C) | 30°F (-1°C) | 39°F (4°C) | 2.9" | 5.7" | 15.2 | 0.0 |
| May | 59°F (15°C) | 40°F (4°C) | 50°F (10°C) | 3.0" | 0.0" | 2.2 | 0.0 |
| June | 70°F (21°C) | 50°F (10°C) | 60°F (16°C) | 3.1" | 0.0" | 0.0 | 0.0 |
| July | 76°F (24°C) | 57°F (14°C) | 66°F (19°C) | 2.8" | 0.0" | 0.0 | 0.1 |
| August | 75°F (24°C) | 57°F (14°C) | 66°F (19°C) | 3.0" | 0.0" | 0.0 | 0.0 |
| September | 68°F (20°C) | 51°F (10°C) | 59°F (15°C) | 3.2" | 0.0" | 0.2 | 0.0 |
| October | 55°F (13°C) | 40°F (4°C) | 47°F (8°C) | 3.6" | 0.2" | 3.3 | 0.0 |
| November | 42°F (6°C) | 29°F (-2°C) | 36°F (2°C) | 2.3" | 3.4" | 16.4 | 0.0 |
| December | 32°F (0°C) | 19°F (-7°C) | 26°F (-4°C) | 1.8" | 12.0" | 27.6 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 1.6"
Snow: 15.0"
10.0 days with precipitation
February 1.1"
Snow: 13.0"
7.7 days with precipitation
March 1.7"
Snow: 9.5"
7.8 days with precipitation
April 2.9"
Snow: 5.7"
9.6 days with precipitation
May 3.0"
11.4 days with precipitation
June 3.1"
10.3 days with precipitation
July 2.8"
9.7 days with precipitation
August 3.0"
9.3 days with precipitation
September 3.2"
9.8 days with precipitation
October 3.6"
Snow: 0.2"
11.7 days with precipitation
November 2.3"
Snow: 3.4"
9.3 days with precipitation
December 1.8"
Snow: 12.0"
9.7 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
October 14
50% probability date
Last Spring Freeze
May 15
50% probability date
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
8,264
Higher = more heating needed
Cooling Degree Days
210
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Related Data
PlainEnviro
EPA environmental data — pollution, water quality, and environmental health by location
PlainCarbon
Carbon emissions data — greenhouse gas reporting and facility-level CO2 data
PlainHazard
Natural disaster data — weather-related hazards, FEMA declarations, and risk profiles
PlainAirData
EPA air quality data — AQI readings, pollutant levels, and air quality trends
Climate Guides
Climate Insight: Washington IS, WI
The NOAA 1991–2020 climate normals describe Washington IS, Wisconsin as a location with an annual average temperature of 43°F, ranging from a mean daily high of 51°F to a mean daily low of 35°F. July is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USC00478905, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.
Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Washington IS receives roughly 30.2 inches of precipitation each year, with 58.8 inches typically falling as snow. Growing-season length varies with elevation and microclimate, with the last spring freeze near May 15 and the first fall freeze near October 14. For energy use, 8,264 heating degree days and 210 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Washington IS scores 47/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Use the monthly tables above to plan around specific windows — shoulder seasons for mild highs and lows, peak summer for July-driven heat, or deep winter for January-driven cold. All figures here are thirty-year averages: any single year may run warmer, wetter, drier, or cooler than the normal, so treat them as planning guidance rather than forecasts.
Frequently Asked Questions
What is the average temperature in Washington IS, WI? ▼
The average annual temperature in Washington IS, Wisconsin is 43°F. The warmest month averages 76°F (24°C) and the coldest averages 11°F (-12°C).
How much rain does Washington IS get? ▼
Washington IS receives 30.2 inches of precipitation annually, including 58.8 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Washington IS? ▼
Washington IS has a climate comfort score of 47/100 (Moderate). This score considers temperature mildness, humidity, precipitation, and extreme weather frequency.
When is the growing season in Washington IS? ▼
Growing season data is not available for Washington IS.
How much energy does heating and cooling require in Washington IS? ▼
Washington IS has 8,264 heating degree days and 210 cooling degree days annually. Higher heating degree days indicate greater winter energy demand, while higher cooling degree days indicate greater summer cooling needs.
Where does this Washington IS climate data come from? ▼
All climate data comes from NOAA U.S. Climate Normals v1.0.1, covering the 30-year period from 1991 to 2020. Data is collected from weather station USC00478905. These 30-year averages are the standard reference for typical weather conditions.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00478905. For informational purposes only.
Read our methodology — how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial
