St Mary's weather by month & the best time to visit
United States · small town · subarctic climate
The best time to visit St Mary's is July — its sunniest month (Sunshine Score 55/100), with June close behind. St Mary's averages about 1,752 hours of sunshine a year. Daytime highs around 17°C / 63°F and roughly 87 mm of rain in July.
When is the best time to visit St Mary's?
For sunshine, the best time to visit St Mary's is July, then June. The dullest month is January (0/100, 42 mm of rain). The full month-by-month picture is in the table below.
How sunny is St Mary's?
St Mary's isn't a sunny place by world standards: about 1,752 hours of sunshine a year. 55 Sunshine Score points separate July (55) from January (0), so the month you pick matters. It ranks #491 of 580 destinations in United States for annual sunshine, below the national median of 2,279 hours. The year's 739 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | -14° / 7°F | -20° / -4°F | 42 mm | 0 |
| February | 0 | -9° / 16°F | -17° / 1°F | 53 mm | 0 |
| March | 0 | -7° / 19°F | -17° / 1°F | 35 mm | 1 |
| April | 0 | 0° / 32°F | -8° / 18°F | 45 mm | 2 |
| May | 7 | 9° / 48°F | 1° / 34°F | 52 mm | 3 |
| June | 52 | 16° / 61°F | 6° / 43°F | 58 mm | 3 |
| July | 55 | 17° / 63°F | 8° / 46°F | 87 mm | 3 |
| August | 42 | 15° / 59°F | 8° / 46°F | 95 mm | 3 |
| September | 12 | 10° / 50°F | 3° / 37°F | 87 mm | 1 |
| October | 0 | 2° / 36°F | -3° / 27°F | 74 mm | 0 |
| November | 0 | -7° / 19°F | -13° / 9°F | 59 mm | 0 |
| December | 0 | -11° / 12°F | -18° / 0°F | 52 mm | 0 |
Nearest destinations
St Mary's: questions and answers
What kind of destination is St Mary's?
St Mary's is a small town in United States with a subarctic climate.
How many hours of sunshine does St Mary's get a year?
St Mary's gets about 1,752 hours of sunshine a year, at its best around July.
When is the best time to visit St Mary's?
The sunniest time to visit St Mary's is July, when the Sunshine Score peaks at 55/100 (with June close behind). Expect daytime highs around 17°C / 63°F.
What is the least sunny month in St Mary's?
January is the least sunny month in St Mary's, scoring 0/100 with about 42 mm of rain.
How strong is the sun in St Mary's?
The typical midday UV index in St Mary's peaks around 3 (moderate) in May, easing to about 0 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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