Troy weather by month
Average highs run from 31°F in January to 82°F in July, and January nights average 17°F. It gets 34 inches of rain and melted snow a year and 36 inches of snow. Nights drop below freezing about 135 times a year. The most comfortable months are May to September.
Best time to visit Troy
For comfortable weather, go in May to September. In those months the average high stays between 62°F and 86°F, nights average 42°F or warmer, and rain stays under 4.5 inches for the month.
Month by month
| Month | High | Low | Precip. | Snow | Wet days | Days 90°F+ | Nights below 32°F | Feels |
|---|---|---|---|---|---|---|---|---|
| January | 31°F | 17°F | 2.2 in | 12.1 in | 5 | 0 | 29 | very cold |
| February | 34°F | 18°F | 1.9 in | 9.0 in | 5 | 0 | 26 | cold |
| March | 44°F | 26°F | 2.2 in | 4.1 in | 5 | 0 | 23 | cold |
| April | 58°F | 36°F | 2.9 in | 0.9 in | 7 | 0 | 10 | cool |
| May | 69°F | 49°F | 3.8 in | 0.0 in | 8 | 0 | 1 | mild |
| June | 78°F | 59°F | 3.3 in | 0.0 in | 6 | 2 | 0 | warm |
| July | 82°F | 63°F | 3.1 in | 0.0 in | 6 | 5 | 0 | warm |
| August | 81°F | 62°F | 3.2 in | 0.0 in | 6 | 2 | 0 | warm |
| September | 74°F | 54°F | 2.9 in | 0.0 in | 5 | 1 | 0 | mild |
| October | 61°F | 42°F | 2.9 in | 0.1 in | 7 | 0 | 3 | cool |
| November | 47°F | 32°F | 3.2 in | 1.7 in | 6 | 0 | 18 | cold |
| December | 36°F | 24°F | 2.3 in | 8.1 in | 6 | 0 | 26 | cold |
| Year | 58°F avg | 40°F avg | 33.9 in | 36.0 in | 71 | 10 | 135 |
"Wet days" are days with at least 0.1 inch of precipitation. "Feels" is a plain-language label for the average high. Normals for 1991-2020 from NOAA NCEI, station Pontiac Wwtp, MI (USC00206658), 5 miles from the city center. Averages describe typical conditions, not a forecast.
Sunrise, sunset and daylight in Troy
The shortest day is December 21, with 9h 02m of daylight; the longest is June 21, with 15h 18m. The earliest sunset comes around December 7 (4:58 pm) and the latest around June 23 (9:14 pm). The sun sets after 8 pm on 155 days a year.
| On the 15th of | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 8:00 am | 5:24 pm | 9h 24m |
| February | 7:29 am | 6:04 pm | 10h 35m |
| March | 7:44 am | 7:39 pm | 11h 54m |
| April | 6:51 am | 8:14 pm | 13h 23m |
| May | 6:10 am | 8:47 pm | 14h 37m |
| June | 5:54 am | 9:11 pm | 15h 17m |
| July | 6:08 am | 9:08 pm | 14h 59m |
| August | 6:39 am | 8:33 pm | 13h 54m |
| September | 7:12 am | 7:42 pm | 12h 29m |
| October | 7:46 am | 6:50 pm | 11h 04m |
| November | 7:24 am | 5:09 pm | 9h 45m |
| December | 7:56 am | 4:59 pm | 9h 04m |
Calculated for 2026 at the center of Troy with NOAA's solar equations, in local clock time (Eastern Time, including daylight saving time where it applies). Times shift by a minute or two from year to year.
Is Troy getting warmer?
The last 10 years averaged 3.3°F warmer than the 20th century. See the climate stripes for Troy.Frequently asked questions
What is the warmest month in Troy?
July is the warmest month, with an average high of 82°F and an average low of 63°F (NOAA 1991-2020 normals).
What is the coldest month in Troy?
January is the coldest, with average lows of 17°F and highs of 31°F.
What is the rainiest month in Troy?
May gets the most precipitation, 3.8 inches on average. February is the driest at 1.9 inches.
Does it snow in Troy?
Yes. Troy averages 36 inches of snow a year.
When is the best time to visit Troy?
For comfortable weather, May to September. Those months average highs between 62 and 86°F with lows of 42°F or more and modest rain.
Thinking of moving to Troy?
See what homes, rent and everyday prices cost, who lives there and how it compares with nearby cities on the full Troy profile.
Compare the weather: Troy vs Rochester Hills, Troy vs Sterling Heights, Troy vs Southfield, Troy vs Warren.