St. Marys
United States · 18K
Lifestyle Calendar
When this city supports your activity — and when it fights you.
St. Marys
United States
Dinner Outside6 – 10 pm
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Verdict
Jan: 21% viability
21Feb: 31% viability
31Mar: 60% viability
60Apr: 79% viability
79May: 88% viability
88Jun: 77% viability
77Jul: 71% viability
71Aug: 69% viability
69Sep: 74% viability
74Oct: 84% viability
84Nov: 51% viability
51Dec: 29% viability
29Cold
Friction Breakdown
Heat
Cold
Wind
Rain
Humid
Air Q.
Best months: Apr–Jul, Sep–OctChallenging: Jan–Feb, Dec
ComfortableModerateUncomfortable
Based on 2014–2024 hourly climate data · Updated Mar 2025Confidence: ●●●
Air Quality Profile
Annual and monthly PM2.5 levels against WHO guidelines.
St. Marys
United States
Annual Average
GoodWHO annual classification
7.1µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
6.86.8 µg/m³ — Good
6.86.8 µg/m³ — Good
6.66.6 µg/m³ — Good
7.67.6 µg/m³ — Good
7.77.7 µg/m³ — Good
6.76.7 µg/m³ — Good
8.48.4 µg/m³ — Good
7.77.7 µg/m³ — Good
6.76.7 µg/m³ — Good
6.96.9 µg/m³ — Good
6.16.1 µg/m³ — Good
6.96.9 µg/m³ — Good
Jan
Feb
Mar
Apr
May
Jun
6.86.8 µg/m³ — Good
6.86.8 µg/m³ — Good
6.66.6 µg/m³ — Good
7.67.6 µg/m³ — Good
7.77.7 µg/m³ — Good
6.76.7 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
8.48.4 µg/m³ — Good
7.77.7 µg/m³ — Good
6.76.7 µg/m³ — Good
6.96.9 µg/m³ — Good
6.16.1 µg/m³ — Good
6.96.9 µg/m³ — Good
Best months: Mar, Jun, NovWorst months: May, Jul–Aug
Good5–10 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholdsConfidence: ●●●
Sun & UV Profile
Monthly sunshine, sky clarity, and UV exposure patterns.
St. Marys
United States
Annual Summary
Sunshine
2,588hrs/yr
Clear sky
48%
Worst month
5.9hrs/day
Vit D months
10.3months
UV 8+ days
94days/yr
UV 11+ days
0days/yr
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Daily hrs
7.77.7 hrs — Good
8.58.5 hrs — Sunny
9.59.5 hrs — Sunny
1111 hrs — Very Sunny
1111 hrs — Very Sunny
1010 hrs — Very Sunny
1111 hrs — Very Sunny
1010 hrs — Sunny
8.98.9 hrs — Sunny
8.98.9 hrs — Sunny
8.08.0 hrs — Good
7.77.7 hrs — Good
Jan
Feb
Mar
Apr
May
Jun
7.77.7 hrs — Good
8.58.5 hrs — Sunny
9.59.5 hrs — Sunny
1111 hrs — Very Sunny
1111 hrs — Very Sunny
1010 hrs — Very Sunny
Jul
Aug
Sep
Oct
Nov
Dec
1111 hrs — Very Sunny
1010 hrs — Sunny
8.98.9 hrs — Sunny
8.98.9 hrs — Sunny
8.08.0 hrs — Good
7.77.7 hrs — Good
Best months: Apr–May, JulWorst months: Jan, Nov–Dec
GoodSunnyVery Sunny
Based on ERA5 sunshine data · CAMS UV indexConfidence: ●●●