Historical data for weatherstation Deelen (🇳🇱) KNMI

Historical data for July 21, 2023

Daily summary for: July 21, 2023

Max. Temperature 20.9 °C (12:50 p.m.)
Min. Temperature 10.3 °C (6:10 a.m.)
Max. Windspeed 44.6 km/h (2:40 p.m.)
Total Precipitation 1.2 mm

Graphs

Temperature on July 21, 2023

Windspeed on July 21, 2023

Pressure on July 21, 2023

Humidity on July 21, 2023

Solarradiation on July 21, 2023

Precipitation on July 21, 2023

Precipitation rate on July 21, 2023

All observations

Time Temperature Dewpoint Humidity Windspeed Winddirection Precipitation Precipitation rate Pressure Solarradiation UV
midnight 12.7 °C 10.9 °C 88 % 3.3 km/h N 0.0 mm 0.0 mm/h 1013.5 hPa 0.0 w/m^2
12:10 a.m. 12.8 °C 10.9 °C 88 % 4.6 km/h N 0.0 mm 0.0 mm/h 1013.5 hPa 0.0 w/m^2
12:20 a.m. 13.1 °C 10.9 °C 86 % 3.7 km/h N 0.0 mm 0.0 mm/h 1013.4 hPa 0.0 w/m^2
12:30 a.m. 13.2 °C 11.1 °C 87 % 2.4 km/h N 0.0 mm 0.0 mm/h 1013.4 hPa 0.0 w/m^2
12:40 a.m. 13.4 °C 11.0 °C 85 % 1.8 km/h N 0.0 mm 0.0 mm/h 1013.4 hPa 0.0 w/m^2
12:50 a.m. 13.6 °C 11.0 °C 84 % 2.1 km/h N 0.0 mm 0.0 mm/h 1013.3 hPa 0.0 w/m^2
1 a.m. 13.6 °C 11.3 °C 86 % 2.7 km/h N 0.0 mm 0.0 mm/h 1013.2 hPa 0.0 w/m^2
1:10 a.m. 13.7 °C 11.5 °C 86 % 2.5 km/h E 0.0 mm 0.0 mm/h 1013.2 hPa 0.0 w/m^2
1:20 a.m. 13.5 °C 11.7 °C 88 % 1.9 km/h E 0.0 mm 0.0 mm/h 1013.2 hPa 0.0 w/m^2
1:30 a.m. 13.8 °C 11.6 °C 86 % 3.1 km/h NW 0.0 mm 0.0 mm/h 1013.1 hPa 0.0 w/m^2
1:40 a.m. 13.8 °C 11.8 °C 87 % 1.7 km/h NW 0.0 mm 0.0 mm/h 1013.0 hPa 0.0 w/m^2
1:50 a.m. 13.9 °C 11.7 °C 86 % 2.3 km/h NW 0.0 mm 0.0 mm/h 1013.0 hPa 0.0 w/m^2
2 a.m. 13.8 °C 11.9 °C 88 % 3.6 km/h NW 0.0 mm 0.0 mm/h 1012.9 hPa 0.0 w/m^2
2:10 a.m. 13.9 °C 11.4 °C 84 % 6.1 km/h NW 0.0 mm 0.0 mm/h 1012.9 hPa 0.0 w/m^2
2:20 a.m. 13.8 °C 10.9 °C 82 % 3.6 km/h N 0.0 mm 0.0 mm/h 1012.8 hPa 0.0 w/m^2
2:30 a.m. 13.7 °C 11.6 °C 87 % 3.5 km/h N 0.0 mm 0.0 mm/h 1012.7 hPa 0.0 w/m^2
2:40 a.m. 13.5 °C 11.7 °C 89 % 2.7 km/h SE 0.0 mm 0.0 mm/h 1012.7 hPa 0.0 w/m^2
2:50 a.m. 13.5 °C 11.9 °C 90 % 1.3 km/h SE 0.0 mm 0.0 mm/h 1012.6 hPa 0.0 w/m^2
3 a.m. 13.2 °C 11.7 °C 90 % 2.4 km/h SE 0.0 mm 0.0 mm/h 1012.5 hPa 0.0 w/m^2
3:10 a.m. 13.0 °C 11.4 °C 90 % 2.9 km/h S 0.0 mm 0.0 mm/h 1012.5 hPa 0.0 w/m^2
3:20 a.m. 12.9 °C 11.4 °C 90 % 2.4 km/h W 0.0 mm 0.0 mm/h 1012.4 hPa 0.0 w/m^2
3:30 a.m. 12.9 °C 11.5 °C 91 % 3.0 km/h W 0.0 mm 0.0 mm/h 1012.3 hPa 0.0 w/m^2
3:40 a.m. 12.8 °C 11.4 °C 91 % 3.1 km/h NW 0.0 mm 0.0 mm/h 1012.2 hPa 0.0 w/m^2
3:50 a.m. 12.6 °C 11.3 °C 91 % 2.8 km/h NW 0.0 mm 0.0 mm/h 1012.2 hPa 0.0 w/m^2
4 a.m. 12.5 °C 10.9 °C 89 % 3.6 km/h NW 0.0 mm 0.0 mm/h 1012.1 hPa 0.0 w/m^2
4:10 a.m. 12.4 °C 10.8 °C 90 % 2.4 km/h NW 0.0 mm 0.0 mm/h 1012.0 hPa 0.0 w/m^2
4:20 a.m. 11.9 °C 10.3 °C 90 % 5.0 km/h NW 0.0 mm 0.0 mm/h 1012.0 hPa 0.0 w/m^2
4:30 a.m. 11.9 °C 10.5 °C 91 % 1.8 km/h NW 0.0 mm 0.0 mm/h 1012.0 hPa 0.0 w/m^2
4:40 a.m. 11.9 °C 10.6 °C 91 % 3.8 km/h NW 0.0 mm 0.0 mm/h 1011.9 hPa 0.0 w/m^2
4:50 a.m. 11.9 °C 10.4 °C 90 % 4.4 km/h SE 0.0 mm 0.0 mm/h 1011.9 hPa 0.0 w/m^2
5 a.m. 11.8 °C 10.2 °C 89 % 4.4 km/h SE 0.0 mm 0.0 mm/h 1011.7 hPa 0.0 w/m^2
5:10 a.m. 11.6 °C 10.1 °C 90 % 4.2 km/h SE 0.0 mm 0.0 mm/h 1011.6 hPa 0.0 w/m^2
5:20 a.m. 11.6 °C 10.3 °C 91 % 4.4 km/h E 0.0 mm 0.0 mm/h 1011.6 hPa 0.0 w/m^2
5:30 a.m. 11.0 °C 9.8 °C 92 % 3.4 km/h NE 0.0 mm 0.0 mm/h 1011.6 hPa 0.0 w/m^2
5:40 a.m. 10.8 °C 9.7 °C 93 % 3.2 km/h NE 0.0 mm 0.0 mm/h 1011.8 hPa 0.0 w/m^2
5:50 a.m. 10.7 °C 9.5 °C 92 % 4.4 km/h N 0.0 mm 0.0 mm/h 1011.8 hPa 1.0 w/m^2
6 a.m. 10.6 °C 9.6 °C 93 % 7.2 km/h NW 0.0 mm 0.0 mm/h 1011.8 hPa 7.0 w/m^2
6:10 a.m. 10.3 °C 9.3 °C 93 % 7.3 km/h N 0.0 mm 0.0 mm/h 1011.7 hPa 14.0 w/m^2
6:20 a.m. 10.5 °C 9.7 °C 94 % 4.3 km/h N 0.0 mm 0.0 mm/h 1011.6 hPa 24.0 w/m^2
6:30 a.m. 10.9 °C 10.0 °C 94 % 5.2 km/h N 0.0 mm 0.0 mm/h 1011.6 hPa 38.0 w/m^2
6:40 a.m. 11.4 °C 10.3 °C 93 % 4.4 km/h N 0.0 mm 0.0 mm/h 1011.6 hPa 48.0 w/m^2
6:50 a.m. 11.8 °C 10.5 °C 91 % 2.6 km/h NW 0.0 mm 0.0 mm/h 1011.5 hPa 58.0 w/m^2
7 a.m. 12.3 °C 11.0 °C 91 % 2.5 km/h N 0.0 mm 0.0 mm/h 1011.5 hPa 69.0 w/m^2
7:10 a.m. 12.5 °C 10.9 °C 89 % 0.8 km/h N 0.0 mm 0.0 mm/h 1011.5 hPa 71.0 w/m^2
7:20 a.m. 12.4 °C 10.8 °C 90 % 1.6 km/h N 0.0 mm 0.0 mm/h 1011.5 hPa 72.0 w/m^2
7:30 a.m. 12.6 °C 11.3 °C 91 % 2.3 km/h NW 0.0 mm 0.0 mm/h 1011.5 hPa 100.0 w/m^2
7:40 a.m. 13.3 °C 11.5 °C 88 % 2.4 km/h NW 0.0 mm 0.0 mm/h 1011.4 hPa 167.0 w/m^2
7:50 a.m. 13.8 °C 11.2 °C 84 % 3.9 km/h W 0.0 mm 0.0 mm/h 1011.5 hPa 226.0 w/m^2
8 a.m. 14.3 °C 10.9 °C 80 % 4.1 km/h N 0.0 mm 0.0 mm/h 1011.5 hPa 263.0 w/m^2
8:10 a.m. 14.7 °C 11.0 °C 78 % 5.2 km/h NW 0.0 mm 0.0 mm/h 1011.4 hPa 223.0 w/m^2
8:20 a.m. 15.0 °C 11.0 °C 76 % 6.1 km/h NW 0.0 mm 0.0 mm/h 1011.5 hPa 243.0 w/m^2
8:30 a.m. 15.5 °C 11.2 °C 75 % 6.6 km/h W 0.0 mm 0.0 mm/h 1011.5 hPa 288.0 w/m^2
8:40 a.m. 15.9 °C 10.8 °C 71 % 5.5 km/h W 0.0 mm 0.0 mm/h 1011.5 hPa 335.0 w/m^2
8:50 a.m. 16.4 °C 11.1 °C 71 % 5.0 km/h SW 0.0 mm 0.0 mm/h 1011.4 hPa 289.0 w/m^2
9 a.m. 16.9 °C 10.4 °C 65 % 5.0 km/h W 0.0 mm 0.0 mm/h 1011.2 hPa 384.0 w/m^2
9:10 a.m. 17.4 °C 10.6 °C 64 % 5.0 km/h SE 0.0 mm 0.0 mm/h 1011.1 hPa 437.0 w/m^2
9:20 a.m. 17.6 °C 10.2 °C 62 % 7.6 km/h S 0.0 mm 0.0 mm/h 1011.1 hPa 360.0 w/m^2
9:30 a.m. 17.8 °C 10.5 °C 62 % 8.7 km/h S 0.0 mm 0.0 mm/h 1011.1 hPa 406.0 w/m^2
9:40 a.m. 18.1 °C 11.0 °C 63 % 8.5 km/h SW 0.0 mm 0.0 mm/h 1011.2 hPa 421.0 w/m^2
9:50 a.m. 18.1 °C 10.4 °C 60 % 9.1 km/h SW 0.0 mm 0.0 mm/h 1011.2 hPa 396.0 w/m^2
10 a.m. 18.0 °C 10.1 °C 59 % 10.2 km/h SW 0.0 mm 0.0 mm/h 1011.1 hPa 366.0 w/m^2
10:10 a.m. 18.2 °C 10.0 °C 58 % 13.3 km/h W 0.0 mm 0.0 mm/h 1011.2 hPa 306.0 w/m^2
10:20 a.m. 18.3 °C 10.2 °C 58 % 13.9 km/h SW 0.0 mm 0.0 mm/h 1011.2 hPa 395.0 w/m^2
10:30 a.m. 18.4 °C 9.7 °C 56 % 13.3 km/h SW 0.0 mm 0.0 mm/h 1011.2 hPa 391.0 w/m^2
10:40 a.m. 18.7 °C 10.0 °C 57 % 17.1 km/h SW 0.0 mm 0.0 mm/h 1011.2 hPa 483.0 w/m^2
10:50 a.m. 18.8 °C 10.3 °C 57 % 17.6 km/h SW 0.0 mm 0.0 mm/h 1011.3 hPa 409.0 w/m^2
11 a.m. 18.8 °C 9.5 °C 55 % 19.2 km/h SW 0.0 mm 0.0 mm/h 1011.2 hPa 470.0 w/m^2
11:10 a.m. 18.8 °C 10.0 °C 56 % 25.2 km/h SW 0.0 mm 0.0 mm/h 1011.1 hPa 486.0 w/m^2
11:20 a.m. 19.5 °C 10.1 °C 54 % 16.5 km/h SW 0.0 mm 0.0 mm/h 1011.2 hPa 714.0 w/m^2
11:30 a.m. 19.6 °C 10.3 °C 54 % 15.4 km/h SW 0.0 mm 0.0 mm/h 1011.2 hPa 710.0 w/m^2
11:40 a.m. 19.3 °C 8.4 °C 49 % 17.7 km/h W 0.0 mm 0.0 mm/h 1011.1 hPa 489.0 w/m^2
11:50 a.m. 20.1 °C 9.9 °C 51 % 20.2 km/h SW 0.0 mm 0.0 mm/h 1011.1 hPa 776.0 w/m^2
noon 20.2 °C 9.7 °C 51 % 17.1 km/h SW 0.0 mm 0.0 mm/h 1011.0 hPa 688.0 w/m^2
12:10 p.m. 19.6 °C 9.3 °C 51 % 25.2 km/h SW 0.0 mm 0.0 mm/h 1011.0 hPa 396.0 w/m^2
12:20 p.m. 19.2 °C 9.0 °C 51 % 27.1 km/h SW 0.0 mm 0.0 mm/h 1011.0 hPa 249.0 w/m^2
12:30 p.m. 19.6 °C 10.0 °C 53 % 19.7 km/h SW 0.0 mm 0.0 mm/h 1011.0 hPa 366.0 w/m^2
12:40 p.m. 19.5 °C 9.6 °C 52 % 18.3 km/h W 0.0 mm 0.0 mm/h 1010.9 hPa 525.0 w/m^2
12:50 p.m. 20.9 °C 10.3 °C 50 % 18.4 km/h SW 0.0 mm 0.0 mm/h 1010.9 hPa 994.0 w/m^2
1 p.m. 20.9 °C 7.5 °C 41 % 17.7 km/h S 0.0 mm 0.0 mm/h 1010.8 hPa 991.0 w/m^2
1:10 p.m. 20.8 °C 7.7 °C 42 % 18.3 km/h SW 0.0 mm 0.0 mm/h 1010.7 hPa 969.0 w/m^2
1:20 p.m. 20.7 °C 8.6 °C 46 % 22.9 km/h SW 0.0 mm 0.0 mm/h 1010.7 hPa 525.0 w/m^2
1:30 p.m. 20.6 °C 9.3 °C 48 % 19.7 km/h W 0.0 mm 0.0 mm/h 1010.7 hPa 386.0 w/m^2
1:40 p.m. 20.2 °C 9.4 °C 49 % 20.1 km/h W 0.0 mm 0.0 mm/h 1010.6 hPa 198.0 w/m^2
1:50 p.m. 19.9 °C 9.3 °C 50 % 20.2 km/h W 0.0 mm 0.0 mm/h 1010.6 hPa 187.0 w/m^2
2 p.m. 20.3 °C 9.1 °C 48 % 19.3 km/h W 0.0 mm 0.0 mm/h 1010.6 hPa 388.0 w/m^2
2:10 p.m. 20.8 °C 9.3 °C 47 % 24.0 km/h W 0.0 mm 0.0 mm/h 1010.5 hPa 445.0 w/m^2
2:20 p.m. 20.6 °C 8.5 °C 45 % 24.1 km/h W 0.0 mm 0.0 mm/h 1010.5 hPa 511.0 w/m^2
2:30 p.m. 20.2 °C 8.5 °C 46 % 19.6 km/h W 0.0 mm 0.0 mm/h 1010.5 hPa 215.0 w/m^2
2:40 p.m. 19.3 °C 9.1 °C 51 % 44.6 km/h W 0.0 mm 0.0 mm/h 1010.9 hPa 96.0 w/m^2
2:50 p.m. 18.5 °C 9.6 °C 55 % 34.2 km/h NW 0.0 mm 0.0 mm/h 1011.0 hPa 171.0 w/m^2
3 p.m. 18.5 °C 9.6 °C 56 % 30.1 km/h NW 0.0 mm 0.0 mm/h 1011.1 hPa 168.0 w/m^2
3:10 p.m. 18.2 °C 9.4 °C 56 % 27.4 km/h NW 0.0 mm 0.0 mm/h 1011.1 hPa 65.0 w/m^2
3:20 p.m. 18.3 °C 9.8 °C 57 % 21.7 km/h NW 0.0 mm 0.0 mm/h 1011.3 hPa 52.0 w/m^2
3:30 p.m. 18.2 °C 10.7 °C 61 % 17.9 km/h W 0.0 mm 0.0 mm/h 1011.3 hPa 74.0 w/m^2
3:40 p.m. 17.6 °C 11.1 °C 65 % 16.2 km/h W 0.0 mm 0.2 mm/h 1011.3 hPa 67.0 w/m^2
3:50 p.m. 18.2 °C 10.8 °C 61 % 17.0 km/h W 0.0 mm 0.0 mm/h 1011.3 hPa 109.0 w/m^2
4 p.m. 18.8 °C 10.4 °C 58 % 24.4 km/h W 0.0 mm 0.0 mm/h 1011.4 hPa 205.0 w/m^2
4:10 p.m. 18.9 °C 10.1 °C 56 % 22.6 km/h W 0.0 mm 0.0 mm/h 1011.4 hPa 454.0 w/m^2
4:20 p.m. 19.0 °C 10.1 °C 56 % 26.5 km/h W 0.0 mm 0.0 mm/h 1011.4 hPa 330.0 w/m^2
4:30 p.m. 19.8 °C 9.1 °C 50 % 25.2 km/h W 0.0 mm 0.0 mm/h 1011.3 hPa 509.0 w/m^2
4:40 p.m. 20.1 °C 9.4 °C 50 % 28.9 km/h W 0.0 mm 0.0 mm/h 1011.3 hPa 803.0 w/m^2
4:50 p.m. 19.8 °C 9.2 °C 50 % 28.0 km/h W 0.0 mm 0.0 mm/h 1011.3 hPa 514.0 w/m^2
5 p.m. 20.6 °C 9.6 °C 49 % 24.6 km/h W 0.0 mm 0.0 mm/h 1011.1 hPa 669.0 w/m^2
5:10 p.m. 18.8 °C 9.9 °C 56 % 28.0 km/h W 0.0 mm 0.0 mm/h 1011.6 hPa 126.0 w/m^2
5:20 p.m. 15.4 °C 12.1 °C 80 % 35.6 km/h W 1.1 mm 6.1 mm/h 1011.9 hPa 53.0 w/m^2
5:30 p.m. 15.7 °C 13.0 °C 84 % 10.0 km/h W 1.2 mm 0.9 mm/h 1011.8 hPa 222.0 w/m^2
5:40 p.m. 17.3 °C 12.9 °C 75 % 7.5 km/h W 1.2 mm 0.0 mm/h 1011.6 hPa 587.0 w/m^2
5:50 p.m. 17.7 °C 12.7 °C 72 % 7.3 km/h NW 1.2 mm 0.0 mm/h 1011.7 hPa 350.0 w/m^2
6 p.m. 17.9 °C 13.5 °C 75 % 16.7 km/h W 1.2 mm 0.0 mm/h 1011.7 hPa 344.0 w/m^2
6:10 p.m. 18.7 °C 12.5 °C 67 % 22.3 km/h W 1.2 mm 0.0 mm/h 1011.8 hPa 384.0 w/m^2
6:20 p.m. 18.5 °C 10.8 °C 61 % 22.2 km/h W 1.2 mm 0.0 mm/h 1011.8 hPa 398.0 w/m^2
6:30 p.m. 19.0 °C 10.4 °C 57 % 24.1 km/h W 1.2 mm 0.0 mm/h 1011.9 hPa 447.0 w/m^2
6:40 p.m. 18.7 °C 9.1 °C 53 % 27.8 km/h W 1.2 mm 0.0 mm/h 1011.9 hPa 295.0 w/m^2
6:50 p.m. 18.8 °C 8.6 °C 51 % 26.1 km/h W 1.2 mm 0.0 mm/h 1012.0 hPa 391.0 w/m^2
7 p.m. 18.4 °C 8.5 °C 52 % 28.9 km/h W 1.2 mm 0.0 mm/h 1012.0 hPa 291.0 w/m^2
7:10 p.m. 18.1 °C 8.1 °C 51 % 29.0 km/h W 1.2 mm 0.0 mm/h 1012.2 hPa 224.0 w/m^2
7:20 p.m. 17.8 °C 8.2 °C 53 % 31.6 km/h W 1.2 mm 0.0 mm/h 1012.3 hPa 122.0 w/m^2
7:30 p.m. 18.4 °C 8.7 °C 53 % 28.0 km/h W 1.2 mm 0.0 mm/h 1012.3 hPa 316.0 w/m^2
7:40 p.m. 18.1 °C 8.8 °C 54 % 27.6 km/h W 1.2 mm 0.0 mm/h 1012.4 hPa 185.0 w/m^2
7:50 p.m. 18.0 °C 9.3 °C 56 % 32.4 km/h W 1.2 mm 0.0 mm/h 1012.4 hPa 166.0 w/m^2
8 p.m. 17.5 °C 9.5 °C 59 % 26.7 km/h W 1.2 mm 0.0 mm/h 1012.5 hPa 90.0 w/m^2
8:10 p.m. 17.9 °C 9.1 °C 56 % 20.5 km/h W 1.2 mm 0.0 mm/h 1012.5 hPa 196.0 w/m^2
8:20 p.m. 17.8 °C 8.0 °C 52 % 31.0 km/h W 1.2 mm 0.0 mm/h 1012.5 hPa 147.0 w/m^2
8:30 p.m. 17.4 °C 7.9 °C 53 % 27.8 km/h W 1.2 mm 0.0 mm/h 1012.5 hPa 118.0 w/m^2
8:40 p.m. 17.2 °C 8.0 °C 54 % 26.4 km/h W 1.2 mm 0.0 mm/h 1012.8 hPa 94.0 w/m^2
8:50 p.m. 16.9 °C 8.2 °C 56 % 22.0 km/h W 1.2 mm 0.0 mm/h 1012.9 hPa 67.0 w/m^2
9 p.m. 16.5 °C 8.4 °C 58 % 19.0 km/h W 1.2 mm 0.0 mm/h 1012.9 hPa 23.0 w/m^2
9:10 p.m. 16.1 °C 8.6 °C 61 % 21.5 km/h W 1.2 mm 0.0 mm/h 1013.0 hPa 19.0 w/m^2
9:20 p.m. 15.9 °C 8.8 °C 62 % 16.1 km/h W 1.2 mm 0.0 mm/h 1013.0 hPa 17.0 w/m^2
9:30 p.m. 15.9 °C 8.9 °C 62 % 19.4 km/h W 1.2 mm 0.0 mm/h 1013.2 hPa 9.0 w/m^2
9:40 p.m. 15.6 °C 9.0 °C 64 % 17.4 km/h W 1.2 mm 0.0 mm/h 1013.4 hPa 5.0 w/m^2
9:50 p.m. 15.4 °C 9.3 °C 66 % 17.5 km/h W 1.2 mm 0.0 mm/h 1013.5 hPa 0.0 w/m^2
10 p.m. 15.6 °C 9.7 °C 67 % 13.7 km/h W 1.2 mm 0.0 mm/h 1013.6 hPa 0.0 w/m^2
10:10 p.m. 15.5 °C 9.8 °C 68 % 15.2 km/h W 1.2 mm 0.0 mm/h 1013.6 hPa 0.0 w/m^2
10:20 p.m. 15.4 °C 10.0 °C 70 % 14.1 km/h W 1.2 mm 0.0 mm/h 1013.6 hPa 0.0 w/m^2
10:40 p.m. 15.0 °C 10.3 °C 73 % 11.2 km/h SW 1.2 mm 0.0 mm/h 1013.6 hPa 0.0 w/m^2
10:50 p.m. 14.7 °C 10.5 °C 75 % 12.5 km/h SW 1.2 mm 0.0 mm/h 1013.9 hPa 0.0 w/m^2
11 p.m. 15.0 °C 10.1 °C 72 % 15.9 km/h W 1.2 mm 0.0 mm/h 1013.9 hPa 0.0 w/m^2
11:10 p.m. 15.0 °C 10.2 °C 72 % 16.4 km/h W 1.2 mm 0.0 mm/h 1014.0 hPa 0.0 w/m^2
11:20 p.m. 14.6 °C 10.4 °C 76 % 12.2 km/h W 1.2 mm 0.0 mm/h 1014.0 hPa 0.0 w/m^2