Bayside, WI climate
Bayside has chilly, snowy winters and pleasant summers. A typical July afternoon reaches 80°, a January night drops to 16°, and about 40 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Bayside feels like
Winter
Spring
Summer
Fall
Bayside 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 | 30° | 16° | 1.6" | 11.0" | 10 | 20 | 12° – 34° |
| February | 33° | 18° | 1.5" | 9.9" | 9 | 17 | 14° – 35° |
| March | 42° | 27° | 2.0" | 5.3" | 9 | 7 | 27° – 49° |
| April | 53° | 36° | 3.7" | 1.5" | 12 | 1 | 36° – 50° |
| May | 64° | 46° | 3.7" | 0 | 13 | 0 | 49° – 60° |
| June | 75° | 56° | 4.2" | 0 | 11 | 0 | 61° – 70° |
| July | 80° | 62° | 3.4" | 0 | 10 | 0 | 66° – 78° |
| August | 79° | 62° | 3.7" | 0 | 10 | 0 | 66° – 76° |
| September | 72° | 55° | 3.2" | 0 | 9 | 0 | 57° – 67° |
| October | 60° | 43° | 2.8" | 0 | 11 | 0 | 47° – 57° |
| November | 46° | 32° | 2.1" | 2.0" | 9 | 2 | 30° – 47° |
| December | 35° | 22° | 1.8" | 9.8" | 10 | 12 | 16° – 38° |
| Year | 56° | 39° | 33.7" | 39.5" | 120 | 58 |
“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 Bayside
Bayside gets 34 inches of rain and melted snow a year. June is the wettest month and February the driest. Rain or snow falls on about 120 days a year. Snow covers the ground about 58 days of the year.
About 182 frost-free days a year
In half of years the last 32° night comes by April 23 and the first one by October 24. That leaves about 182 frost-free days for gardens, longer than 55% of U.S. towns.
Heating and cooling a home in Bayside
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Bayside, 92% of that work is heating and 8% 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.
Bayside and its neighbors
Bayside borders 3 towns with climate data. January nights across them vary by 2.1°. Mequon has both the coldest January nights (14°) and the hottest July afternoons (82°). Bayside’s January low is 16° and its July high 80°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Bayside 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 Bayside averaged 1.3° warmer than the 1900s. The biggest change is in December (+3.1°). The shift is larger than in 60% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Bayside’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. December swings the most: between 1991 and 2020 its average temperature ranged from 16° to 38°. June is the most reliable, staying within 9°.
Common questions about Bayside’s climate
What is the coldest month in Bayside?
January, with a typical high of 30° and a low of 16°.
What is the hottest month in Bayside?
July, with a typical high of 80° and a low of 62°. About 6 days a year reach 90°.
How much snow does Bayside get?
About 40 inches in a normal winter, most of it in January.
When is the first frost in Bayside?
In half of years the first 32° night comes by October 24, and the last spring frost by April 23.
What is the rainiest month in Bayside?
June, with 4.2 inches of rain and melted snow. The year totals 34 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Bayside itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Mt Mary College, WI (10 mi, snow) and Grafton WWTP, WI (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.