Historical data for weatherstation De Kooy (🇳🇱) KNMI

Historical data for Aug. 1, 2023

Daily summary for: Aug. 1, 2023

Max. Temperature 18.3 °C (12:20 p.m.)
Min. Temperature 14.6 °C (6:10 a.m.)
Max. Windspeed 55.1 km/h (1 p.m.)
Total Precipitation 8.4 mm

Graphs

Temperature on Aug. 1, 2023

Windspeed on Aug. 1, 2023

Pressure on Aug. 1, 2023

Humidity on Aug. 1, 2023

Solarradiation on Aug. 1, 2023

Precipitation on Aug. 1, 2023

Precipitation rate on Aug. 1, 2023

All observations

Time Temperature Dewpoint Humidity Windspeed Winddirection Precipitation Precipitation rate Pressure Solarradiation UV
midnight 17.4 °C 15.4 °C 88 % 23.7 km/h W 2.1 mm 0.0 mm/h 998.0 hPa 2.0 w/m^2
12:10 a.m. 17.2 °C 15.4 °C 88 % 24.5 km/h W 0.6 mm 0.0 mm/h 997.9 hPa 1.0 w/m^2
12:20 a.m. 17.1 °C 15.2 °C 88 % 27.4 km/h W 0.3 mm 0.0 mm/h 997.9 hPa 1.0 w/m^2
12:30 a.m. 17.1 °C 14.5 °C 84 % 26.9 km/h W 0.2 mm 0.0 mm/h 997.7 hPa 1.0 w/m^2
12:40 a.m. 17.0 °C 13.8 °C 81 % 25.6 km/h W 0.1 mm 0.0 mm/h 997.6 hPa 1.0 w/m^2
12:50 a.m. 16.9 °C 13.6 °C 81 % 31.9 km/h W 0.0 mm 0.0 mm/h 997.6 hPa 0.0 w/m^2
1 a.m. 17.0 °C 13.5 °C 79 % 26.9 km/h W 0.0 mm 0.0 mm/h 997.5 hPa 0.0 w/m^2
1:10 a.m. 17.2 °C 13.8 °C 80 % 30.6 km/h W 0.0 mm 0.0 mm/h 997.5 hPa 2.0 w/m^2
1:20 a.m. 16.9 °C 13.7 °C 81 % 22.6 km/h W 0.0 mm 0.0 mm/h 997.4 hPa 1.0 w/m^2
1:30 a.m. 16.9 °C 13.6 °C 80 % 25.7 km/h W 0.0 mm 0.0 mm/h 997.3 hPa 1.0 w/m^2
1:40 a.m. 17.0 °C 13.6 °C 80 % 24.5 km/h W 0.0 mm 0.0 mm/h 997.3 hPa 1.0 w/m^2
1:50 a.m. 17.1 °C 13.7 °C 80 % 27.5 km/h W 0.0 mm 0.0 mm/h 997.2 hPa 2.0 w/m^2
2 a.m. 17.2 °C 14.0 °C 81 % 23.6 km/h W 0.0 mm 0.0 mm/h 997.0 hPa 2.0 w/m^2
2:10 a.m. 17.3 °C 14.1 °C 81 % 21.6 km/h SW 0.0 mm 0.0 mm/h 996.9 hPa 2.0 w/m^2
2:20 a.m. 17.3 °C 14.0 °C 80 % 24.9 km/h SW 0.0 mm 0.0 mm/h 996.7 hPa 2.0 w/m^2
2:30 a.m. 17.5 °C 14.1 °C 80 % 32.9 km/h W 0.0 mm 0.0 mm/h 996.5 hPa 2.0 w/m^2
2:40 a.m. 17.3 °C 14.2 °C 82 % 36.1 km/h W 0.0 mm 0.0 mm/h 996.4 hPa 2.0 w/m^2
2:50 a.m. 16.4 °C 12.7 °C 78 % 43.3 km/h W 0.0 mm 0.0 mm/h 996.4 hPa 2.0 w/m^2
3 a.m. 14.8 °C 12.8 °C 87 % 41.7 km/h W 0.4 mm 2.5 mm/h 996.6 hPa 0.0 w/m^2
3:10 a.m. 14.7 °C 13.3 °C 91 % 35.9 km/h W 0.8 mm 2.0 mm/h 996.7 hPa 1.0 w/m^2
3:20 a.m. 15.0 °C 13.7 °C 91 % 31.8 km/h W 0.8 mm 0.1 mm/h 996.5 hPa 2.0 w/m^2
3:30 a.m. 15.3 °C 13.4 °C 88 % 28.6 km/h W 0.8 mm 0.1 mm/h 996.5 hPa 2.0 w/m^2
3:40 a.m. 15.5 °C 13.4 °C 87 % 37.1 km/h W 0.8 mm 0.1 mm/h 996.6 hPa 2.0 w/m^2
3:50 a.m. 15.2 °C 13.3 °C 88 % 37.4 km/h W 0.8 mm 0.0 mm/h 996.5 hPa 1.0 w/m^2
4 a.m. 15.0 °C 13.6 °C 91 % 27.8 km/h W 0.8 mm 0.1 mm/h 996.3 hPa 1.0 w/m^2
4:10 a.m. 15.1 °C 13.7 °C 91 % 18.7 km/h W 0.8 mm 0.0 mm/h 996.3 hPa 1.0 w/m^2
4:20 a.m. 15.4 °C 13.7 °C 89 % 20.8 km/h W 0.8 mm 0.0 mm/h 996.0 hPa 1.0 w/m^2
4:30 a.m. 15.4 °C 13.5 °C 88 % 24.1 km/h W 0.8 mm 0.0 mm/h 995.9 hPa 1.0 w/m^2
4:40 a.m. 15.8 °C 13.7 °C 87 % 27.3 km/h W 0.8 mm 0.0 mm/h 995.9 hPa 1.0 w/m^2
4:50 a.m. 16.1 °C 14.3 °C 89 % 37.8 km/h W 1.1 mm 1.2 mm/h 995.9 hPa 2.0 w/m^2
5 a.m. 15.3 °C 13.6 °C 89 % 40.5 km/h W 1.2 mm 0.8 mm/h 996.0 hPa 1.0 w/m^2
5:10 a.m. 15.3 °C 13.5 °C 88 % 38.1 km/h W 1.2 mm 0.0 mm/h 995.9 hPa 2.0 w/m^2
5:20 a.m. 15.6 °C 13.7 °C 88 % 35.6 km/h SW 1.2 mm 0.0 mm/h 995.9 hPa 2.0 w/m^2
5:30 a.m. 15.6 °C 13.7 °C 88 % 35.8 km/h W 1.3 mm 0.4 mm/h 995.8 hPa 1.0 w/m^2
5:40 a.m. 15.9 °C 14.3 °C 90 % 34.3 km/h W 1.3 mm 0.0 mm/h 995.9 hPa 2.0 w/m^2
5:50 a.m. 16.1 °C 14.3 °C 89 % 34.5 km/h W 1.3 mm 0.0 mm/h 995.8 hPa 2.0 w/m^2
6 a.m. 15.8 °C 14.4 °C 91 % 44.7 km/h W 1.6 mm 2.0 mm/h 995.9 hPa 2.0 w/m^2
6:10 a.m. 14.6 °C 12.9 °C 89 % 44.9 km/h W 1.8 mm 1.3 mm/h 996.0 hPa 2.0 w/m^2
6:20 a.m. 14.9 °C 13.6 °C 91 % 37.9 km/h W 2.0 mm 0.9 mm/h 995.9 hPa 2.0 w/m^2
6:30 a.m. 15.1 °C 13.7 °C 91 % 40.9 km/h W 2.0 mm 0.4 mm/h 995.9 hPa 4.0 w/m^2
6:40 a.m. 15.2 °C 13.6 °C 90 % 38.4 km/h W 2.3 mm 1.3 mm/h 995.9 hPa 7.0 w/m^2
6:50 a.m. 15.2 °C 13.5 °C 89 % 35.5 km/h W 2.3 mm 0.4 mm/h 995.8 hPa 14.0 w/m^2
7 a.m. 15.1 °C 13.3 °C 88 % 38.4 km/h W 2.4 mm 0.3 mm/h 995.9 hPa 23.0 w/m^2
7:10 a.m. 15.2 °C 13.2 °C 87 % 43.8 km/h W 2.4 mm 0.1 mm/h 995.9 hPa 35.0 w/m^2
7:20 a.m. 14.9 °C 13.0 °C 88 % 44.3 km/h W 2.5 mm 0.4 mm/h 995.9 hPa 34.0 w/m^2
7:30 a.m. 14.8 °C 13.3 °C 90 % 36.4 km/h W 3.1 mm 3.7 mm/h 995.9 hPa 33.0 w/m^2
7:40 a.m. 15.6 °C 14.0 °C 90 % 37.9 km/h W 3.3 mm 1.2 mm/h 995.8 hPa 49.0 w/m^2
7:50 a.m. 15.0 °C 13.5 °C 90 % 47.8 km/h W 4.0 mm 4.5 mm/h 995.9 hPa 9.0 w/m^2
8 a.m. 15.3 °C 14.2 °C 93 % 40.4 km/h W 4.7 mm 3.9 mm/h 995.8 hPa 18.0 w/m^2
8:10 a.m. 14.9 °C 13.8 °C 92 % 53.1 km/h W 7.4 mm 16.3 mm/h 995.9 hPa 15.0 w/m^2
8:20 a.m. 15.7 °C 14.6 °C 92 % 49.1 km/h W 8.0 mm 3.6 mm/h 995.8 hPa 36.0 w/m^2
8:30 a.m. 16.1 °C 14.2 °C 88 % 51.0 km/h W 8.0 mm 0.0 mm/h 995.9 hPa 68.0 w/m^2
8:40 a.m. 16.0 °C 14.2 °C 89 % 50.7 km/h W 8.0 mm 0.0 mm/h 995.9 hPa 68.0 w/m^2
8:50 a.m. 15.6 °C 13.7 °C 88 % 52.1 km/h W 8.1 mm 0.4 mm/h 996.1 hPa 40.0 w/m^2
9 a.m. 15.9 °C 14.4 °C 90 % 50.0 km/h W 8.1 mm 0.3 mm/h 996.0 hPa 79.0 w/m^2
9:10 a.m. 16.4 °C 14.5 °C 88 % 54.8 km/h W 8.1 mm 0.0 mm/h 996.1 hPa 127.0 w/m^2
9:20 a.m. 16.6 °C 14.3 °C 86 % 49.6 km/h W 8.1 mm 0.0 mm/h 996.2 hPa 152.0 w/m^2
9:30 a.m. 16.6 °C 14.1 °C 85 % 50.6 km/h W 8.1 mm 0.1 mm/h 996.3 hPa 132.0 w/m^2
9:40 a.m. 16.5 °C 14.1 °C 85 % 49.2 km/h W 8.1 mm 0.1 mm/h 996.4 hPa 94.0 w/m^2
9:50 a.m. 16.5 °C 13.9 °C 84 % 48.8 km/h W 8.1 mm 0.0 mm/h 996.4 hPa 55.0 w/m^2
10 a.m. 15.5 °C 13.9 °C 90 % 53.7 km/h W 8.3 mm 0.8 mm/h 996.6 hPa 40.0 w/m^2
10:10 a.m. 16.3 °C 14.7 °C 90 % 45.4 km/h W 8.3 mm 0.1 mm/h 996.6 hPa 171.0 w/m^2
10:20 a.m. 16.4 °C 14.5 °C 88 % 43.8 km/h W 8.3 mm 0.0 mm/h 996.6 hPa 161.0 w/m^2
10:30 a.m. 17.1 °C 14.3 °C 83 % 46.6 km/h W 8.3 mm 0.0 mm/h 996.7 hPa 396.0 w/m^2
10:40 a.m. 17.2 °C 14.5 °C 84 % 46.6 km/h W 8.3 mm 0.0 mm/h 996.8 hPa 277.0 w/m^2
10:50 a.m. 17.0 °C 14.0 °C 82 % 47.6 km/h W 8.3 mm 0.0 mm/h 996.9 hPa 364.0 w/m^2
11 a.m. 17.0 °C 13.8 °C 81 % 48.0 km/h W 8.3 mm 0.0 mm/h 997.1 hPa 310.0 w/m^2
11:10 a.m. 17.8 °C 14.2 °C 79 % 49.5 km/h W 8.3 mm 0.0 mm/h 997.1 hPa 574.0 w/m^2
11:20 a.m. 16.8 °C 14.1 °C 83 % 51.3 km/h W 8.3 mm 0.0 mm/h 997.3 hPa 322.0 w/m^2
11:30 a.m. 16.5 °C 14.5 °C 88 % 53.1 km/h W 8.3 mm 0.1 mm/h 997.3 hPa 253.0 w/m^2
11:40 a.m. 17.4 °C 14.2 °C 81 % 47.1 km/h W 8.3 mm 0.0 mm/h 997.4 hPa 471.0 w/m^2
11:50 a.m. 17.0 °C 14.1 °C 82 % 48.3 km/h W 8.3 mm 0.0 mm/h 997.5 hPa 308.0 w/m^2
12:10 p.m. 16.7 °C 14.1 °C 84 % 52.3 km/h W 8.3 mm 0.0 mm/h 997.6 hPa 180.0 w/m^2
12:20 p.m. 18.3 °C 14.9 °C 80 % 48.5 km/h W 8.3 mm 0.0 mm/h 997.7 hPa 696.0 w/m^2
12:30 p.m. 16.2 °C 14.0 °C 86 % 45.3 km/h W 8.3 mm 0.1 mm/h 997.8 hPa 233.0 w/m^2
12:40 p.m. 16.6 °C 14.5 °C 87 % 49.2 km/h W 8.3 mm 0.0 mm/h 997.8 hPa 193.0 w/m^2
12:50 p.m. 17.4 °C 14.5 °C 83 % 53.4 km/h W 8.3 mm 0.0 mm/h 997.8 hPa 558.0 w/m^2
1 p.m. 17.6 °C 14.2 °C 80 % 55.1 km/h W 8.3 mm 0.0 mm/h 998.0 hPa 816.0 w/m^2
1:10 p.m. 17.3 °C 14.2 °C 82 % 50.5 km/h W 8.3 mm 0.0 mm/h 998.1 hPa 524.0 w/m^2
1:20 p.m. 17.3 °C 14.2 °C 82 % 50.8 km/h W 8.3 mm 0.0 mm/h 998.2 hPa 570.0 w/m^2
1:30 p.m. 17.4 °C 14.3 °C 82 % 47.6 km/h W 8.3 mm 0.0 mm/h 998.3 hPa 479.0 w/m^2
1:40 p.m. 18.0 °C 14.6 °C 80 % 46.3 km/h W 8.3 mm 0.0 mm/h 998.3 hPa 690.0 w/m^2
1:50 p.m. 17.7 °C 14.3 °C 80 % 48.6 km/h W 8.3 mm 0.0 mm/h 998.3 hPa 616.0 w/m^2
2 p.m. 17.1 °C 14.1 °C 82 % 51.3 km/h W 8.3 mm 0.0 mm/h 998.4 hPa 276.0 w/m^2
2:10 p.m. 17.4 °C 14.5 °C 83 % 45.3 km/h W 8.3 mm 0.0 mm/h 998.5 hPa 464.0 w/m^2
2:20 p.m. 16.9 °C 14.0 °C 83 % 48.2 km/h W 8.3 mm 0.0 mm/h 998.7 hPa 363.0 w/m^2
2:30 p.m. 16.2 °C 14.5 °C 89 % 48.7 km/h W 8.3 mm 0.0 mm/h 998.9 hPa 317.0 w/m^2
2:40 p.m. 16.2 °C 14.5 °C 89 % 50.7 km/h W 8.3 mm 0.0 mm/h 999.0 hPa 350.0 w/m^2
2:50 p.m. 16.1 °C 14.6 °C 91 % 46.9 km/h W 8.3 mm 0.0 mm/h 998.9 hPa 279.0 w/m^2
3 p.m. 16.9 °C 15.0 °C 88 % 46.5 km/h W 8.3 mm 0.0 mm/h 998.9 hPa 394.0 w/m^2
3:10 p.m. 17.9 °C 15.6 °C 86 % 42.7 km/h W 8.3 mm 0.0 mm/h 998.9 hPa 616.0 w/m^2
3:20 p.m. 16.8 °C 13.7 °C 82 % 53.7 km/h W 8.3 mm 0.0 mm/h 999.0 hPa 471.0 w/m^2
3:30 p.m. 16.2 °C 14.4 °C 89 % 49.0 km/h W 8.4 mm 0.2 mm/h 999.0 hPa 249.0 w/m^2
3:40 p.m. 17.2 °C 14.6 °C 84 % 44.6 km/h W 8.4 mm 0.0 mm/h 999.0 hPa 525.0 w/m^2
3:50 p.m. 17.6 °C 14.7 °C 82 % 49.4 km/h W 8.4 mm 0.0 mm/h 999.1 hPa 507.0 w/m^2
4 p.m. 17.3 °C 14.5 °C 83 % 42.6 km/h W 8.4 mm 0.0 mm/h 999.2 hPa 383.0 w/m^2
4:10 p.m. 16.5 °C 14.4 °C 87 % 47.8 km/h W 8.4 mm 0.0 mm/h 999.4 hPa 226.0 w/m^2
4:20 p.m. 16.4 °C 14.8 °C 90 % 44.8 km/h W 8.4 mm 0.2 mm/h 999.3 hPa 297.0 w/m^2
4:30 p.m. 17.9 °C 15.8 °C 87 % 46.0 km/h W 8.4 mm 0.0 mm/h 999.3 hPa 772.0 w/m^2
4:40 p.m. 17.8 °C 14.4 °C 80 % 45.9 km/h W 8.4 mm 0.0 mm/h 999.4 hPa 591.0 w/m^2
4:50 p.m. 17.2 °C 14.3 °C 83 % 45.6 km/h W 8.4 mm 0.0 mm/h 999.4 hPa 247.0 w/m^2
5 p.m. 16.7 °C 15.0 °C 89 % 44.7 km/h W 8.4 mm 0.0 mm/h 999.5 hPa 191.0 w/m^2
5:10 p.m. 17.5 °C 14.4 °C 81 % 48.2 km/h W 8.4 mm 0.0 mm/h 999.5 hPa 558.0 w/m^2
5:20 p.m. 17.3 °C 14.4 °C 83 % 47.4 km/h W 8.4 mm 0.0 mm/h 999.6 hPa 349.0 w/m^2
5:30 p.m. 17.5 °C 14.3 °C 81 % 45.7 km/h W 8.4 mm 0.0 mm/h 999.6 hPa 444.0 w/m^2
5:40 p.m. 17.7 °C 14.6 °C 81 % 48.4 km/h W 8.4 mm 0.0 mm/h 999.6 hPa 343.0 w/m^2
5:50 p.m. 18.0 °C 14.4 °C 79 % 48.2 km/h W 8.4 mm 0.0 mm/h 999.6 hPa 485.0 w/m^2
6 p.m. 17.4 °C 13.8 °C 79 % 47.3 km/h W 8.4 mm 0.0 mm/h 999.7 hPa 198.0 w/m^2
6:10 p.m. 17.5 °C 13.8 °C 78 % 46.2 km/h W 8.4 mm 0.0 mm/h 999.7 hPa 258.0 w/m^2
6:20 p.m. 17.6 °C 13.9 °C 78 % 49.6 km/h W 8.4 mm 0.0 mm/h 999.7 hPa 304.0 w/m^2
6:30 p.m. 17.5 °C 14.0 °C 79 % 51.4 km/h W 8.4 mm 0.0 mm/h 999.8 hPa 209.0 w/m^2
6:40 p.m. 17.6 °C 14.0 °C 79 % 45.9 km/h W 8.4 mm 0.0 mm/h 999.8 hPa 258.0 w/m^2
6:50 p.m. 17.1 °C 13.5 °C 79 % 47.4 km/h W 8.4 mm 0.0 mm/h 999.9 hPa 111.0 w/m^2
7 p.m. 17.5 °C 14.1 °C 80 % 45.6 km/h W 8.4 mm 0.0 mm/h 999.9 hPa 222.0 w/m^2
7:10 p.m. 17.6 °C 14.1 °C 80 % 47.4 km/h W 8.4 mm 0.0 mm/h 999.8 hPa 211.0 w/m^2
7:20 p.m. 17.5 °C 13.7 °C 78 % 49.6 km/h W 8.4 mm 0.0 mm/h 999.9 hPa 197.0 w/m^2
7:30 p.m. 17.4 °C 13.7 °C 79 % 45.9 km/h W 8.4 mm 0.0 mm/h 999.9 hPa 186.0 w/m^2
7:40 p.m. 17.4 °C 13.6 °C 78 % 44.1 km/h W 8.4 mm 0.0 mm/h 999.9 hPa 180.0 w/m^2
7:50 p.m. 17.3 °C 14.0 °C 80 % 43.3 km/h W 8.4 mm 0.0 mm/h 1000.0 hPa 119.0 w/m^2
8 p.m. 17.3 °C 13.7 °C 79 % 43.2 km/h W 8.4 mm 0.0 mm/h 1000.1 hPa 82.0 w/m^2
8:10 p.m. 17.2 °C 13.5 °C 78 % 44.5 km/h W 8.4 mm 0.0 mm/h 1000.1 hPa 86.0 w/m^2
8:20 p.m. 17.3 °C 13.9 °C 80 % 40.3 km/h W 8.4 mm 0.0 mm/h 1000.2 hPa 79.0 w/m^2
8:30 p.m. 17.3 °C 13.7 °C 79 % 41.2 km/h W 8.4 mm 0.0 mm/h 1000.2 hPa 83.0 w/m^2
8:40 p.m. 17.4 °C 13.8 °C 79 % 39.2 km/h W 8.4 mm 0.0 mm/h 1000.3 hPa 98.0 w/m^2
8:50 p.m. 17.3 °C 13.8 °C 80 % 37.9 km/h W 8.4 mm 0.0 mm/h 1000.4 hPa 82.0 w/m^2
9 p.m. 17.0 °C 13.5 °C 79 % 35.9 km/h W 8.4 mm 0.0 mm/h 1000.5 hPa 45.0 w/m^2
9:10 p.m. 16.9 °C 13.5 °C 80 % 34.2 km/h W 8.4 mm 0.0 mm/h 1000.6 hPa 29.0 w/m^2
9:20 p.m. 16.9 °C 13.4 °C 79 % 33.8 km/h W 8.4 mm 0.0 mm/h 1000.6 hPa 17.0 w/m^2
9:30 p.m. 16.9 °C 13.5 °C 80 % 33.2 km/h W 8.4 mm 0.0 mm/h 1000.7 hPa 9.0 w/m^2
9:40 p.m. 16.9 °C 13.6 °C 81 % 36.0 km/h W 8.4 mm 0.0 mm/h 1000.8 hPa 5.0 w/m^2
9:50 p.m. 16.7 °C 13.5 °C 81 % 31.5 km/h W 8.4 mm 0.0 mm/h 1000.7 hPa 3.0 w/m^2
10 p.m. 16.7 °C 13.6 °C 81 % 30.6 km/h W 8.4 mm 0.0 mm/h 1000.7 hPa 1.0 w/m^2
10:10 p.m. 16.7 °C 13.6 °C 81 % 25.9 km/h W 8.4 mm 0.0 mm/h 1000.8 hPa 1.0 w/m^2
10:20 p.m. 16.7 °C 13.6 °C 81 % 27.8 km/h W 8.4 mm 0.0 mm/h 1000.8 hPa 1.0 w/m^2
10:30 p.m. 16.7 °C 13.7 °C 82 % 28.7 km/h W 8.4 mm 0.0 mm/h 1000.8 hPa 1.0 w/m^2
10:40 p.m. 16.8 °C 13.8 °C 82 % 24.4 km/h W 8.4 mm 0.0 mm/h 1000.8 hPa 2.0 w/m^2
10:50 p.m. 16.8 °C 13.8 °C 82 % 24.1 km/h W 8.4 mm 0.0 mm/h 1000.7 hPa 2.0 w/m^2
11 p.m. 16.7 °C 13.7 °C 82 % 22.6 km/h W 8.4 mm 0.0 mm/h 1000.5 hPa 1.0 w/m^2
11:10 p.m. 16.4 °C 13.9 °C 85 % 19.2 km/h W 8.4 mm 0.0 mm/h 1000.7 hPa 1.0 w/m^2
11:20 p.m. 16.4 °C 13.9 °C 85 % 20.3 km/h W 8.4 mm 0.0 mm/h 1000.9 hPa 1.0 w/m^2
11:30 p.m. 16.5 °C 13.9 °C 84 % 20.4 km/h W 8.4 mm 0.0 mm/h 1000.8 hPa 1.0 w/m^2
11:40 p.m. 16.5 °C 13.6 °C 82 % 18.3 km/h SW 8.4 mm 0.0 mm/h 1000.6 hPa 1.0 w/m^2