Willoughby
United States · 23K
Lifestyle Calendar
When this city supports your activity — and when it fights you.
Willoughby
United States
Dinner Outside6 – 10 pm
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Verdict
Jan: 0% viability
0Feb: 0% viability
0Mar: 8% viability
8Apr: 26% viability
26May: 63% viability
63Jun: 79% viability
79Jul: 83% viability
83Aug: 80% viability
80Sep: 77% viability
77Oct: 28% viability
28Nov: 2% viability
2Dec: 0% viability
0Cold
Friction Breakdown
Heat
Cold
Wind
Rain
Humid
Air Q.
Best months: Jun–SepChallenging: Jan–Apr, Oct–Dec
ComfortableModerateUncomfortable
Based on 2014–2024 hourly climate data · Updated Mar 2025Confidence: ●●●
Air Quality Profile
Annual and monthly PM2.5 levels against WHO guidelines.
Willoughby
United States
Annual Average
GoodWHO annual classification
6.9µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
7.97.9 µg/m³ — Good
7.47.4 µg/m³ — Good
7.37.3 µg/m³ — Good
4.64.6 µg/m³ — Excellent
6.96.9 µg/m³ — Good
7.47.4 µg/m³ — Good
6.86.8 µg/m³ — Good
7.37.3 µg/m³ — Good
6.36.3 µg/m³ — Good
5.65.6 µg/m³ — Good
7.37.3 µg/m³ — Good
7.57.5 µg/m³ — Good
Jan
Feb
Mar
Apr
May
Jun
7.97.9 µg/m³ — Good
7.47.4 µg/m³ — Good
7.37.3 µg/m³ — Good
4.64.6 µg/m³ — Excellent
6.96.9 µg/m³ — Good
7.47.4 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
6.86.8 µg/m³ — Good
7.37.3 µg/m³ — Good
6.36.3 µg/m³ — Good
5.65.6 µg/m³ — Good
7.37.3 µg/m³ — Good
7.57.5 µg/m³ — Good
Best months: Apr, Sep–OctWorst months: Jan, Jun, Dec
Excellent0–5 µg/m³Good5–10 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholdsConfidence: ●●●
Sun & UV Profile
Monthly sunshine, sky clarity, and UV exposure patterns.
Willoughby
United States
Annual Summary
Sunshine
2,264hrs/yr
Clear sky
44%
Worst month
1.2hrs/day
Vit D months
6.6months
UV 8+ days
21days/yr
UV 11+ days
0days/yr
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Daily hrs
4.04.0 hrs — Low
6.76.7 hrs — Good
8.78.7 hrs — Sunny
1010 hrs — Sunny
1111 hrs — Very Sunny
1212 hrs — Very Sunny
1212 hrs — Very Sunny
1111 hrs — Very Sunny
9.89.8 hrs — Sunny
8.08.0 hrs — Good
5.95.9 hrs — Moderate
3.03.0 hrs — Low
Jan
Feb
Mar
Apr
May
Jun
4.04.0 hrs — Low
6.76.7 hrs — Good
8.78.7 hrs — Sunny
1010 hrs — Sunny
1111 hrs — Very Sunny
1212 hrs — Very Sunny
Jul
Aug
Sep
Oct
Nov
Dec
1212 hrs — Very Sunny
1111 hrs — Very Sunny
9.89.8 hrs — Sunny
8.08.0 hrs — Good
5.95.9 hrs — Moderate
3.03.0 hrs — Low
Best months: Jun–AugWorst months: Jan, Nov–Dec
LowModerateGoodSunnyVery Sunny
Based on ERA5 sunshine data · CAMS UV indexConfidence: ●●●