Ruby has chilly, snowy winters and pleasant summers
A typical July afternoon reaches 82°, a January night drops to 18°, and about 36 inches of snow falls in a normal winter.
A year in Ruby at a glance
Each month’s typical high and low, and what it brings.
What stands out about Ruby’s climate
Read from where Ruby sits among Michigan’s towns. The page puts what stands out first.
Living with Ruby’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
196 frost-free days. The last frost comes by Apr 19 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 3.
About 36" a winter over 12 days with an inch or more, most in February. Snow covers the ground about 50 days a year.
Months averaging under 55° run from October through April. Heating is 89% of the year’s heating-and-cooling load.
About 10 days a year reach 90°, and July afternoons average 82°.
The nicest months are May, June, July, August and September. 2.3 miles of trails are waiting.
Parks & trails →Normals are averages. Ice storms, nor’easters, floods and heat waves are on the natural hazards page.
Natural hazards →36 inches of snow, 34 of rain and melt
May is the wettest month and February the driest. Rain or snow falls on about 140 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
What a year in Ruby feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 196 frost-free days a year
In half of years the last 32° night comes by April 19 and the first by November 3.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
Ruby and its neighbors
Kenockee has the coldest January nights next door (17°) and Kenockee the hottest July afternoons (82°). Tap a town to see its climate.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
Warmer than it used to be
The last 30 years in Ruby averaged 1.6° warmer than the 1900s. The biggest change is in December (+2.8°).
A bigger shift than in 77% of U.S. towns.
Change by month
How Ruby compares
Against every U.S. town on TownTapestry, each counted once, with its place in Michigan.
Ruby 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 | 31° | 18° | 2.4" | 11.1" | 14 | 17 | 14° – 33° |
| February | 33° | 19° | 1.9" | 11.4" | 10 | 16 | 11° – 35° |
| March | 43° | 26° | 2.2" | 4.6" | 11 | 7 | 25° – 47° |
| April | 55° | 36° | 3.2" | 0.4" | 13 | 0 | 40° – 51° |
| May | 68° | 47° | 3.5" | 0 | 13 | 0 | 49° – 63° |
| June | 78° | 57° | 3.4" | 0 | 11 | 0 | 63° – 72° |
| July | 82° | 62° | 3.2" | 0 | 10 | 0 | 67° – 76° |
| August | 80° | 61° | 3.2" | 0 | 10 | 0 | 66° – 75° |
| September | 73° | 54° | 3.1" | 0 | 10 | 0 | 58° – 68° |
| October | 60° | 44° | 3.0" | 0 | 13 | 0 | 48° – 59° |
| November | 47° | 33° | 2.7" | 1.3" | 12 | 1 | 33° – 46° |
| December | 36° | 25° | 2.3" | 6.7" | 13 | 9 | 19° – 40° |
| Year | 57° | 40° | 34.0" | 35.5" | 140 | 50 |
Heating and cooling a home in Ruby
89% of the work is heating, so the furnace matters far more than the air conditioner.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. Source: NOAA station normals.
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 11° to 35°. August is the most reliable, staying within 9°.
Common questions about Ruby’s climate
What is the coldest month in Ruby?
January, with a typical high of 31° and a low of 18°.
What is the hottest month in Ruby?
July, with a typical high of 82° and a low of 62°. About 10 days a year reach 90°.
How much snow does Ruby get?
About 36 inches in a normal winter, most of it in February.
When is the first frost in Ruby?
In half of years the first 32° night comes by November 3, and the last spring frost by April 19.
What is the rainiest month in Ruby?
May, with 3.5 inches of rain and melted snow. The year totals 34 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in Ruby.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for Ruby itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Port Huron, MI (10 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Today’s forecast: National Weather Service.