☀️ Sunshine Statistics 2017

📍 Location: N 48*33.82' E 016*05.504'

📅 Analysis Date: 2026-01-01 16:20:20

📊 WMO Sunshine Definition: Solar radiation > 120 W/m² with clear-sky ratio > 0.4

📈 Yearly Summary

Total Sunshine Hours: 1716.5 h Average Daily Sunshine: 4.70 h
Sunniest Day: 2017-05-21 (10.24 h) Sunniest Month: Jun (219.0 h)
Least Sunny Month: Dec (52.0 h) Sunshine Percentage: 19.6%
Longest Sunny Streak: 134 days Longest Sunless Streak: 0 days
Sunny Days (any sunshine): 332 days Days with >5h Sunshine: 194 days

📅 Monthly Sunshine Statistics

Comprehensive monthly breakdown of sunshine hours and statistics

Total Sunshine Avg Daily Max Daily Min Daily Sunny Days Days >1h Days >3h Days >5h Sunshine % Avg Radiation
Jan 55.8 1.80 4.67 0.00 22 17 8 0 7.5 28.5
Feb 114.3 4.08 6.94 0.00 27 25 19 14 17.0 57.8
Mar 172.4 5.56 8.16 0.34 31 30 24 21 23.2 102.9
Apr 162.9 5.43 9.34 0.00 29 26 25 18 22.6 129.7
May 203.5 6.57 10.24 0.54 31 30 29 26 27.4 180.9
Jun 219.0 7.30 8.49 3.29 30 30 30 28 30.4 209.7
Jul 201.0 6.48 8.33 1.21 31 31 30 25 27.0 182.3
Aug 205.9 6.64 8.33 0.52 31 29 29 26 27.7 172.6
Sep 146.4 4.88 7.97 0.00 27 25 23 20 20.3 96.3
Oct 128.9 4.16 6.93 0.00 29 26 21 14 17.3 67.0
Nov 54.4 1.81 5.72 0.00 20 16 8 2 7.6 32.5
Dec 52.0 1.68 3.81 0.00 24 22 6 0 7.0 25.9
2017 1716.5 4.70 10.24 0.00 332 307 252 194 19.6 107.5

📊 Monthly Details

Detailed statistics for each month

Jan
Total Sunshine: 55.8 hours Average per Day: 1.80 hours
Sunny Days: 22 of 31 days Days with >5h Sunshine: 0 days
Sunshine Percentage: 7.5% Avg Solar Radiation: 28.5 W/m²
Maximum Daily Sunshine: 4.67 hours Minimum Daily Sunshine: 0.00 hours
Feb
Total Sunshine: 114.3 hours Average per Day: 4.08 hours
Sunny Days: 27 of 28 days Days with >5h Sunshine: 14 days
Sunshine Percentage: 17.0% Avg Solar Radiation: 57.8 W/m²
Maximum Daily Sunshine: 6.94 hours Minimum Daily Sunshine: 0.00 hours
Mar
Total Sunshine: 172.4 hours Average per Day: 5.56 hours
Sunny Days: 31 of 31 days Days with >5h Sunshine: 21 days
Sunshine Percentage: 23.2% Avg Solar Radiation: 102.9 W/m²
Maximum Daily Sunshine: 8.16 hours Minimum Daily Sunshine: 0.34 hours
Apr
Total Sunshine: 162.9 hours Average per Day: 5.43 hours
Sunny Days: 29 of 30 days Days with >5h Sunshine: 18 days
Sunshine Percentage: 22.6% Avg Solar Radiation: 129.7 W/m²
Maximum Daily Sunshine: 9.34 hours Minimum Daily Sunshine: 0.00 hours
May
Total Sunshine: 203.5 hours Average per Day: 6.57 hours
Sunny Days: 31 of 31 days Days with >5h Sunshine: 26 days
Sunshine Percentage: 27.4% Avg Solar Radiation: 180.9 W/m²
Maximum Daily Sunshine: 10.24 hours Minimum Daily Sunshine: 0.54 hours
Jun
Total Sunshine: 219.0 hours Average per Day: 7.30 hours
Sunny Days: 30 of 30 days Days with >5h Sunshine: 28 days
Sunshine Percentage: 30.4% Avg Solar Radiation: 209.7 W/m²
Maximum Daily Sunshine: 8.49 hours Minimum Daily Sunshine: 3.29 hours
Jul
Total Sunshine: 201.0 hours Average per Day: 6.48 hours
Sunny Days: 31 of 31 days Days with >5h Sunshine: 25 days
Sunshine Percentage: 27.0% Avg Solar Radiation: 182.3 W/m²
Maximum Daily Sunshine: 8.33 hours Minimum Daily Sunshine: 1.21 hours
Aug
Total Sunshine: 205.9 hours Average per Day: 6.64 hours
Sunny Days: 31 of 31 days Days with >5h Sunshine: 26 days
Sunshine Percentage: 27.7% Avg Solar Radiation: 172.6 W/m²
Maximum Daily Sunshine: 8.33 hours Minimum Daily Sunshine: 0.52 hours
Sep
Total Sunshine: 146.4 hours Average per Day: 4.88 hours
Sunny Days: 27 of 30 days Days with >5h Sunshine: 20 days
Sunshine Percentage: 20.3% Avg Solar Radiation: 96.3 W/m²
Maximum Daily Sunshine: 7.97 hours Minimum Daily Sunshine: 0.00 hours
Oct
Total Sunshine: 128.9 hours Average per Day: 4.16 hours
Sunny Days: 29 of 31 days Days with >5h Sunshine: 14 days
Sunshine Percentage: 17.3% Avg Solar Radiation: 67.0 W/m²
Maximum Daily Sunshine: 6.93 hours Minimum Daily Sunshine: 0.00 hours
Nov
Total Sunshine: 54.4 hours Average per Day: 1.81 hours
Sunny Days: 20 of 30 days Days with >5h Sunshine: 2 days
Sunshine Percentage: 7.6% Avg Solar Radiation: 32.5 W/m²
Maximum Daily Sunshine: 5.72 hours Minimum Daily Sunshine: 0.00 hours
Dec
Total Sunshine: 52.0 hours Average per Day: 1.68 hours
Sunny Days: 24 of 31 days Days with >5h Sunshine: 0 days
Sunshine Percentage: 7.0% Avg Solar Radiation: 25.9 W/m²
Maximum Daily Sunshine: 3.81 hours Minimum Daily Sunshine: 0.00 hours

🌤️ Sunshine Categories

Distribution of days by sunshine duration categories

☁️ Sunless

Definition: 0 hours of sunshine

Days: 33 days

Percentage: 9.0%

⛅ Very Cloudy

Definition: 0-1 hours of sunshine

Days: 25 days

Percentage: 6.8%

🌥️ Cloudy

Definition: 1-3 hours of sunshine

Days: 55 days

Percentage: 15.1%

🌤️ Partly Sunny

Definition: 3-5 hours of sunshine

Days: 58 days

Percentage: 15.9%

☀️ Sunny

Definition: 5-8 hours of sunshine

Days: 169 days

Percentage: 46.3%

🔥 Very Sunny

Definition: >8 hours of sunshine

Days: 25 days

Percentage: 6.8%

📋 Summary Table

Category Definition Days Percentage
☁️ Sunless 0 hours 33 9.0%
⛅ Very Cloudy 0-1 hours 25 6.8%
🌥️ Cloudy 1-3 hours 55 15.1%
🌤️ Partly Sunny 3-5 hours 58 15.9%
☀️ Sunny 5-8 hours 169 46.3%
🔥 Very Sunny >8 hours 25 6.8%
Total All days 365 100.0%

📊 Key Statistics

📈 Annual Totals

Total Sunshine: 1716.5 hours

Average per Day: 4.70 hours

Sunshine Percentage: 19.6%

🏆 Records

Sunniest Day: 10.24 h
2017-05-21

Sunniest Month: Jun
219.0 hours total

⏱️ Streaks

Longest Sunny Streak: 134 days

Longest Sunless Streak: 0 days

Days with any Sunshine: 332 days

☀️ Quality Days

Days >1h Sunshine: 307 days

Days >3h Sunshine: 252 days

Days >5h Sunshine: 194 days

📄 Report Information

Data Source: Davis Vantage Pro2 weather station with solar radiation sensor

Analysis Method: WMO (World Meteorological Organization) sunshine definition

Calculation: Sunshine is recorded when direct solar irradiance exceeds 120 W/m²

Location Coordinates: N 48*33.82' E 016*05.504'

Generated: 2026-01-01 at 16:20:20

🔍 How to Read This Report