Marshalltown
United States · 28K
Lifestyle Calendar
When this city supports your activity — and when it fights you.
Marshalltown
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: 6% viability
6Apr: 28% viability
28May: 55% viability
55Jun: 85% viability
85Jul: 87% viability
87Aug: 87% viability
87Sep: 84% viability
84Oct: 31% viability
31Nov: 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.
Marshalltown
United States
Annual Average
GoodWHO annual classification
6.0µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
7.17.1 µg/m³ — Good
6.76.7 µg/m³ — Good
5.55.5 µg/m³ — Good
4.84.8 µg/m³ — Excellent
4.94.9 µg/m³ — Excellent
5.45.4 µg/m³ — Good
6.06.0 µg/m³ — Good
5.75.7 µg/m³ — Good
6.66.6 µg/m³ — Good
5.55.5 µg/m³ — Good
6.06.0 µg/m³ — Good
7.47.4 µg/m³ — Good
Jan
Feb
Mar
Apr
May
Jun
7.17.1 µg/m³ — Good
6.76.7 µg/m³ — Good
5.55.5 µg/m³ — Good
4.84.8 µg/m³ — Excellent
4.94.9 µg/m³ — Excellent
5.45.4 µg/m³ — Good
Jul
Aug
Sep
Oct
Nov
Dec
6.06.0 µg/m³ — Good
5.75.7 µg/m³ — Good
6.66.6 µg/m³ — Good
5.55.5 µg/m³ — Good
6.06.0 µg/m³ — Good
7.47.4 µg/m³ — Good
Best months: Apr–JunWorst months: Jan–Feb, 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.
Marshalltown
United States
Annual Summary
Sunshine
2,453hrs/yr
Clear sky
49%
Worst month
2.2hrs/day
Vit D months
6.9months
UV 8+ days
33days/yr
UV 11+ days
0days/yr
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Daily hrs
4.84.8 hrs — Moderate
8.08.0 hrs — Good
9.39.3 hrs — Sunny
9.99.9 hrs — Sunny
9.39.3 hrs — Sunny
1212 hrs — Very Sunny
1212 hrs — Very Sunny
1212 hrs — Very Sunny
1010 hrs — Very Sunny
8.88.8 hrs — Sunny
7.07.0 hrs — Good
6.36.3 hrs — Good
Jan
Feb
Mar
Apr
May
Jun
4.84.8 hrs — Moderate
8.08.0 hrs — Good
9.39.3 hrs — Sunny
9.99.9 hrs — Sunny
9.39.3 hrs — Sunny
1212 hrs — Very Sunny
Jul
Aug
Sep
Oct
Nov
Dec
1212 hrs — Very Sunny
1212 hrs — Very Sunny
1010 hrs — Very Sunny
8.88.8 hrs — Sunny
7.07.0 hrs — Good
6.36.3 hrs — Good
Best months: Jun–AugWorst months: Jan, Nov–Dec
ModerateGoodSunnyVery Sunny
Based on ERA5 sunshine data · CAMS UV indexConfidence: ●●●