CN flagLanzhou

China · 2.7M

Lifestyle Calendar

When this city supports your activity — and when it fights you.

Dinner Outside6 – 10 pm
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Jan: 0% viability
0
Feb: 4% viability
4
Mar: 20% viability
20
Apr: 30% viability
30
May: 66% viability
66
Jun: 84% viability
84
Jul: 83% viability
83
Aug: 83% viability
83
Sep: 73% viability
73
Oct: 19% viability
19
Nov: 2% viability
2
Dec: 0% viability
0
Friction Breakdown
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.

Annual Average
UnhealthyWHO annual classification
36.0µg/m³
Jan
Feb
Mar
Apr
May
Jun
5656 µg/m³ — Very Unhealthy
4343 µg/m³ — Unhealthy
4141 µg/m³ — Unhealthy
3131 µg/m³ — Poor
2727 µg/m³ — Poor
2525 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
2323 µg/m³ — Moderate
2323 µg/m³ — Moderate
2323 µg/m³ — Moderate
3434 µg/m³ — Poor
5353 µg/m³ — Very Unhealthy
5454 µg/m³ — Very Unhealthy
Best months: Jul–SepWorst months: Jan, Nov–Dec
Moderate15–25 µg/m³Poor25–35 µg/m³Unhealthy35–50 µg/m³Very Unhealthy50–75 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholdsConfidence: ●●●

Sun & UV Profile

Monthly sunshine, sky clarity, and UV exposure patterns.

Annual Summary
Sunshine
2,492hrs/yr
Clear sky
50%
Worst month
6.0hrs/day
Vit D months
8.4months
UV 8+ days
87days/yr
UV 11+ days
8days/yr
Jan
Feb
Mar
Apr
May
Jun
8.08.0 hrsGood
8.98.9 hrsSunny
9.69.6 hrsSunny
9.89.8 hrsSunny
1111 hrsVery Sunny
1111 hrsVery Sunny
Jul
Aug
Sep
Oct
Nov
Dec
1111 hrsVery Sunny
1010 hrsSunny
8.68.6 hrsSunny
7.77.7 hrsGood
7.97.9 hrsGood
7.77.7 hrsGood
Best months: May–JulWorst months: Oct–Dec
GoodSunnyVery Sunny
Based on ERA5 sunshine data · CAMS UV indexConfidence: ●●●