HabiBubble

US flagBoulder

United States · 95K

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: 0% viability
0
Mar: 11% viability
11
Apr: 31% viability
31
May: 49% viability
49
Jun: 76% viability
76
Jul: 80% viability
80
Aug: 84% viability
84
Sep: 75% viability
75
Oct: 27% viability
27
Nov: 1% viability
1
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
GoodWHO annual classification
5.6µg/m³
Jan
Feb
Mar
Apr
May
Jun
5.25.2 µg/m³ — Good
5.55.5 µg/m³ — Good
5.55.5 µg/m³ — Good
5.25.2 µg/m³ — Good
4.94.9 µg/m³ — Excellent
6.46.4 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
6.06.0 µg/m³ — Good
6.06.0 µg/m³ — Good
6.86.8 µg/m³ — Good
5.15.1 µg/m³ — Good
5.15.1 µg/m³ — Good
4.84.8 µg/m³ — Excellent
Best months: May, Oct, DecWorst months: Jun, Aug–Sep
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.

Annual Summary
Sunshine
3,080hrs/yr
Clear sky
60%
Worst month
6.1hrs/day
Vit D months
8.9months
UV 8+ days
106days/yr
UV 11+ days
3days/yr
Jan
Feb
Mar
Apr
May
Jun
7.27.2 hrs — Good
8.98.9 hrs — Sunny
9.89.8 hrs — Sunny
1111 hrs — Very Sunny
1212 hrs — Very Sunny
1212 hrs — Very Sunny
Jul
Aug
Sep
Oct
Nov
Dec
1212 hrs — Very Sunny
1111 hrs — Very Sunny
1010 hrs — Sunny
9.09.0 hrs — Sunny
8.38.3 hrs — Sunny
7.47.4 hrs — Good
Best months: May–JulWorst months: Jan, Nov–Dec
GoodSunnyVery Sunny
Based on ERA5 sunshine data · CAMS UV indexConfidence: ●●●