Historical data for weatherstation Volkel (🇳🇱) KNMI

Historical data for Nov. 27, 2023

Daily summary for: Nov. 27, 2023

Max. Temperature 5.1 °C (12:40 p.m.)
Min. Temperature 0.7 °C (10:20 p.m.)
Max. Windspeed 36.9 km/h (5:10 a.m.)
Total Precipitation 27.6 mm

Graphs

Temperature on Nov. 27, 2023

Windspeed on Nov. 27, 2023

Pressure on Nov. 27, 2023

Humidity on Nov. 27, 2023

Solarradiation on Nov. 27, 2023

Precipitation on Nov. 27, 2023

Precipitation rate on Nov. 27, 2023

All observations

Time Temperature Dewpoint Humidity Windspeed Winddirection Precipitation Precipitation rate Pressure Solarradiation UV
midnight 4.6 °C 3.1 °C 90 % 19.8 km/h S 0.6 mm 0.0 mm/h 1010.5 hPa 0.0 w/m^2
12:10 a.m. 4.5 °C 3.4 °C 93 % 18.6 km/h S 0.3 mm 0.4 mm/h 1010.5 hPa 0.0 w/m^2
12:20 a.m. 4.5 °C 3.5 °C 93 % 17.4 km/h SW 0.3 mm 1.0 mm/h 1010.5 hPa 0.0 w/m^2
12:30 a.m. 4.5 °C 3.6 °C 94 % 20.2 km/h SW 0.6 mm 1.8 mm/h 1010.2 hPa 0.0 w/m^2
12:40 a.m. 4.5 °C 3.7 °C 94 % 19.2 km/h SW 0.8 mm 1.5 mm/h 1010.0 hPa 0.0 w/m^2
12:50 a.m. 4.6 °C 3.6 °C 93 % 27.1 km/h SW 1.1 mm 1.5 mm/h 1010.0 hPa 0.0 w/m^2
1 a.m. 4.6 °C 3.6 °C 93 % 25.1 km/h SW 1.2 mm 1.0 mm/h 1009.8 hPa 0.0 w/m^2
1:10 a.m. 4.5 °C 3.6 °C 93 % 25.4 km/h SW 1.4 mm 1.0 mm/h 1009.5 hPa 0.0 w/m^2
1:20 a.m. 4.5 °C 3.5 °C 93 % 24.6 km/h SW 1.5 mm 0.9 mm/h 1009.4 hPa 0.0 w/m^2
1:30 a.m. 4.5 °C 3.5 °C 93 % 26.4 km/h SW 1.8 mm 1.3 mm/h 1009.1 hPa 0.0 w/m^2
1:40 a.m. 4.4 °C 3.5 °C 93 % 26.1 km/h SW 2.0 mm 1.4 mm/h 1009.0 hPa 0.0 w/m^2
1:50 a.m. 4.3 °C 3.4 °C 93 % 25.2 km/h SW 2.2 mm 1.0 mm/h 1008.8 hPa 0.0 w/m^2
2 a.m. 4.3 °C 3.4 °C 93 % 25.4 km/h S 2.3 mm 0.9 mm/h 1008.5 hPa 0.0 w/m^2
2:10 a.m. 4.3 °C 3.3 °C 93 % 24.0 km/h S 2.4 mm 0.6 mm/h 1008.5 hPa 0.0 w/m^2
2:20 a.m. 4.3 °C 3.3 °C 93 % 25.8 km/h S 2.5 mm 0.2 mm/h 1008.2 hPa 0.0 w/m^2
2:30 a.m. 4.2 °C 3.2 °C 93 % 23.7 km/h S 2.6 mm 0.9 mm/h 1008.1 hPa 0.0 w/m^2
2:40 a.m. 4.3 °C 3.2 °C 92 % 24.3 km/h S 2.7 mm 0.6 mm/h 1007.9 hPa 0.0 w/m^2
2:50 a.m. 4.3 °C 3.1 °C 92 % 23.8 km/h S 2.7 mm 0.1 mm/h 1007.7 hPa 0.0 w/m^2
3 a.m. 4.3 °C 3.0 °C 91 % 25.8 km/h S 2.7 mm 0.1 mm/h 1007.5 hPa 0.0 w/m^2
3:10 a.m. 4.3 °C 3.0 °C 91 % 27.6 km/h S 2.8 mm 0.5 mm/h 1007.3 hPa 0.0 w/m^2
3:20 a.m. 4.3 °C 2.9 °C 90 % 26.6 km/h S 3.0 mm 0.9 mm/h 1007.1 hPa 0.0 w/m^2
3:30 a.m. 4.3 °C 2.9 °C 90 % 26.6 km/h S 3.1 mm 0.6 mm/h 1007.0 hPa 0.0 w/m^2
3:40 a.m. 4.2 °C 2.9 °C 91 % 27.3 km/h S 3.1 mm 0.3 mm/h 1006.8 hPa 0.0 w/m^2
3:50 a.m. 4.2 °C 2.9 °C 91 % 27.7 km/h S 3.1 mm 0.2 mm/h 1006.6 hPa 0.0 w/m^2
4 a.m. 4.2 °C 3.0 °C 91 % 30.8 km/h S 3.3 mm 0.7 mm/h 1006.3 hPa 0.0 w/m^2
4:10 a.m. 4.1 °C 3.0 °C 92 % 31.1 km/h S 3.4 mm 0.7 mm/h 1006.1 hPa 0.0 w/m^2
4:20 a.m. 4.1 °C 3.1 °C 93 % 34.1 km/h S 3.6 mm 1.2 mm/h 1005.8 hPa 0.0 w/m^2
4:30 a.m. 4.1 °C 3.1 °C 93 % 35.2 km/h S 3.8 mm 1.1 mm/h 1005.5 hPa 0.0 w/m^2
4:40 a.m. 4.0 °C 3.1 °C 93 % 35.0 km/h S 4.0 mm 1.5 mm/h 1005.3 hPa 0.0 w/m^2
4:50 a.m. 3.9 °C 3.2 °C 94 % 33.3 km/h S 4.3 mm 2.0 mm/h 1005.1 hPa 0.0 w/m^2
5 a.m. 3.9 °C 3.2 °C 95 % 32.1 km/h S 4.7 mm 2.2 mm/h 1004.9 hPa 0.0 w/m^2
5:10 a.m. 3.9 °C 3.1 °C 94 % 36.9 km/h S 4.8 mm 1.0 mm/h 1004.6 hPa 0.0 w/m^2
5:20 a.m. 3.8 °C 3.1 °C 95 % 29.8 km/h S 5.0 mm 1.2 mm/h 1004.4 hPa 0.0 w/m^2
5:30 a.m. 3.8 °C 3.1 °C 95 % 31.4 km/h S 5.3 mm 1.4 mm/h 1004.1 hPa 0.0 w/m^2
5:40 a.m. 3.8 °C 3.1 °C 94 % 27.2 km/h S 5.5 mm 1.2 mm/h 1003.8 hPa 0.0 w/m^2
5:50 a.m. 3.8 °C 3.0 °C 95 % 28.1 km/h S 5.7 mm 1.1 mm/h 1003.7 hPa 0.0 w/m^2
6 a.m. 3.8 °C 3.1 °C 95 % 29.5 km/h S 5.8 mm 1.0 mm/h 1003.7 hPa 0.0 w/m^2
6:10 a.m. 3.7 °C 3.1 °C 95 % 21.9 km/h S 6.0 mm 1.2 mm/h 1003.4 hPa 0.0 w/m^2
6:20 a.m. 3.7 °C 3.1 °C 96 % 27.5 km/h S 6.2 mm 1.1 mm/h 1003.2 hPa 1.0 w/m^2
6:30 a.m. 3.8 °C 3.2 °C 96 % 30.8 km/h S 6.5 mm 1.5 mm/h 1003.1 hPa 0.0 w/m^2
6:40 a.m. 3.9 °C 3.2 °C 95 % 25.5 km/h S 6.6 mm 1.0 mm/h 1002.8 hPa 0.0 w/m^2
6:50 a.m. 3.8 °C 3.2 °C 95 % 21.6 km/h S 6.8 mm 1.0 mm/h 1002.6 hPa 0.0 w/m^2
7 a.m. 3.8 °C 3.1 °C 95 % 22.1 km/h S 7.0 mm 1.5 mm/h 1002.3 hPa 0.0 w/m^2
7:10 a.m. 3.8 °C 3.2 °C 95 % 23.4 km/h S 7.3 mm 1.5 mm/h 1002.2 hPa 0.0 w/m^2
7:20 a.m. 3.8 °C 3.1 °C 95 % 19.2 km/h S 7.6 mm 1.6 mm/h 1002.0 hPa 0.0 w/m^2
7:30 a.m. 3.8 °C 3.1 °C 95 % 22.4 km/h S 7.9 mm 2.2 mm/h 1001.8 hPa 0.0 w/m^2
7:40 a.m. 3.8 °C 3.1 °C 95 % 24.0 km/h S 8.1 mm 1.0 mm/h 1001.7 hPa 0.0 w/m^2
7:50 a.m. 3.7 °C 3.2 °C 96 % 20.8 km/h S 8.3 mm 1.0 mm/h 1001.5 hPa 0.0 w/m^2
8 a.m. 3.7 °C 3.1 °C 95 % 23.1 km/h S 8.4 mm 1.1 mm/h 1001.3 hPa 0.0 w/m^2
8:10 a.m. 3.7 °C 3.2 °C 95 % 20.3 km/h S 8.6 mm 1.1 mm/h 1001.1 hPa 1.0 w/m^2
8:20 a.m. 3.7 °C 3.2 °C 96 % 20.6 km/h S 8.9 mm 1.7 mm/h 1000.8 hPa 1.0 w/m^2
8:30 a.m. 3.7 °C 3.2 °C 96 % 19.4 km/h SE 9.2 mm 1.4 mm/h 1000.6 hPa 1.0 w/m^2
8:40 a.m. 3.7 °C 3.2 °C 96 % 16.1 km/h SE 9.4 mm 1.6 mm/h 1000.5 hPa 2.0 w/m^2
8:50 a.m. 3.8 °C 3.2 °C 96 % 18.0 km/h SE 9.7 mm 1.8 mm/h 1000.4 hPa 3.0 w/m^2
9 a.m. 3.8 °C 3.4 °C 97 % 16.7 km/h S 10.1 mm 2.0 mm/h 1000.2 hPa 3.0 w/m^2
9:10 a.m. 3.8 °C 3.3 °C 96 % 15.7 km/h SE 10.3 mm 1.5 mm/h 1000.0 hPa 5.0 w/m^2
9:20 a.m. 3.8 °C 3.5 °C 97 % 15.4 km/h SE 10.6 mm 1.6 mm/h 999.8 hPa 6.0 w/m^2
9:30 a.m. 3.8 °C 3.5 °C 97 % 17.3 km/h SE 10.8 mm 1.2 mm/h 999.7 hPa 7.0 w/m^2
9:40 a.m. 3.9 °C 3.5 °C 97 % 17.1 km/h SE 11.0 mm 1.3 mm/h 999.5 hPa 8.0 w/m^2
9:50 a.m. 4.0 °C 3.6 °C 97 % 15.0 km/h SE 11.2 mm 1.6 mm/h 999.3 hPa 8.0 w/m^2
10 a.m. 4.0 °C 3.7 °C 97 % 17.0 km/h SE 11.6 mm 1.9 mm/h 999.2 hPa 10.0 w/m^2
10:10 a.m. 4.1 °C 3.8 °C 98 % 15.9 km/h SE 11.8 mm 1.6 mm/h 999.1 hPa 12.0 w/m^2
10:20 a.m. 4.1 °C 3.8 °C 97 % 16.0 km/h SE 12.1 mm 1.5 mm/h 998.8 hPa 15.0 w/m^2
10:40 a.m. 4.3 °C 4.1 °C 98 % 17.1 km/h S 12.3 mm 1.6 mm/h 998.5 hPa 21.0 w/m^2
10:50 a.m. 4.4 °C 4.0 °C 97 % 19.2 km/h S 12.6 mm 1.4 mm/h 998.3 hPa 24.0 w/m^2
11 a.m. 4.4 °C 4.1 °C 97 % 17.1 km/h S 12.9 mm 1.7 mm/h 998.2 hPa 18.0 w/m^2
11:10 a.m. 4.5 °C 4.2 °C 97 % 16.5 km/h S 13.1 mm 1.4 mm/h 998.0 hPa 19.0 w/m^2
11:20 a.m. 4.6 °C 4.3 °C 97 % 15.0 km/h S 13.3 mm 1.2 mm/h 997.8 hPa 19.0 w/m^2
11:30 a.m. 4.7 °C 4.4 °C 98 % 15.3 km/h S 13.6 mm 1.6 mm/h 997.5 hPa 23.0 w/m^2
11:40 a.m. 4.8 °C 4.4 °C 97 % 17.1 km/h S 13.8 mm 1.4 mm/h 997.3 hPa 28.0 w/m^2
noon 4.9 °C 4.5 °C 97 % 18.0 km/h S 14.2 mm 2.5 mm/h 997.2 hPa 30.0 w/m^2
12:10 p.m. 4.9 °C 4.6 °C 97 % 16.1 km/h S 14.6 mm 2.6 mm/h 996.9 hPa 31.0 w/m^2
12:20 p.m. 5.0 °C 4.7 °C 97 % 15.0 km/h S 15.0 mm 1.9 mm/h 996.8 hPa 36.0 w/m^2
12:30 p.m. 5.0 °C 4.7 °C 97 % 17.9 km/h S 15.2 mm 1.8 mm/h 996.6 hPa 39.0 w/m^2
12:40 p.m. 5.1 °C 4.7 °C 97 % 19.0 km/h S 15.7 mm 2.4 mm/h 996.3 hPa 41.0 w/m^2
12:50 p.m. 5.1 °C 4.7 °C 96 % 19.4 km/h S 15.9 mm 1.7 mm/h 996.1 hPa 45.0 w/m^2
1 p.m. 5.1 °C 4.6 °C 96 % 18.7 km/h S 16.1 mm 1.2 mm/h 995.9 hPa 32.0 w/m^2
1:10 p.m. 5.1 °C 4.6 °C 96 % 19.2 km/h S 16.3 mm 0.8 mm/h 995.8 hPa 21.0 w/m^2
1:20 p.m. 5.1 °C 4.5 °C 96 % 20.6 km/h S 16.6 mm 1.9 mm/h 995.6 hPa 28.0 w/m^2
1:30 p.m. 5.1 °C 4.5 °C 96 % 20.5 km/h S 16.9 mm 1.9 mm/h 995.4 hPa 27.0 w/m^2
1:40 p.m. 5.1 °C 4.6 °C 96 % 17.8 km/h S 17.3 mm 2.1 mm/h 995.2 hPa 31.0 w/m^2
1:50 p.m. 5.1 °C 4.7 °C 97 % 17.4 km/h S 17.6 mm 1.8 mm/h 995.0 hPa 30.0 w/m^2
2 p.m. 5.1 °C 4.6 °C 96 % 17.7 km/h S 17.8 mm 1.5 mm/h 994.8 hPa 27.0 w/m^2
2:10 p.m. 5.0 °C 4.6 °C 96 % 15.5 km/h S 18.0 mm 1.2 mm/h 994.7 hPa 22.0 w/m^2
2:20 p.m. 5.1 °C 4.7 °C 97 % 13.9 km/h S 18.2 mm 1.2 mm/h 994.5 hPa 18.0 w/m^2
2:30 p.m. 5.1 °C 4.6 °C 96 % 16.0 km/h S 18.5 mm 1.8 mm/h 994.4 hPa 18.0 w/m^2
2:40 p.m. 5.1 °C 4.6 °C 96 % 18.7 km/h S 18.8 mm 1.5 mm/h 994.2 hPa 19.0 w/m^2
2:50 p.m. 5.1 °C 4.6 °C 96 % 14.4 km/h S 18.9 mm 0.9 mm/h 994.1 hPa 18.0 w/m^2
3 p.m. 5.1 °C 4.6 °C 96 % 12.5 km/h S 19.0 mm 0.7 mm/h 993.9 hPa 16.0 w/m^2
3:10 p.m. 5.1 °C 4.7 °C 97 % 13.4 km/h S 19.2 mm 0.8 mm/h 993.8 hPa 16.0 w/m^2
3:20 p.m. 5.1 °C 4.7 °C 97 % 14.1 km/h S 19.3 mm 1.0 mm/h 993.7 hPa 17.0 w/m^2
3:30 p.m. 5.1 °C 4.7 °C 97 % 15.9 km/h S 19.5 mm 0.7 mm/h 993.5 hPa 13.0 w/m^2
3:40 p.m. 5.1 °C 4.8 °C 98 % 15.1 km/h S 19.5 mm 0.3 mm/h 993.4 hPa 9.0 w/m^2
3:50 p.m. 5.1 °C 4.8 °C 97 % 16.6 km/h S 19.6 mm 0.7 mm/h 993.4 hPa 9.0 w/m^2
4 p.m. 5.1 °C 4.8 °C 98 % 14.7 km/h S 19.7 mm 0.5 mm/h 993.2 hPa 7.0 w/m^2
4:10 p.m. 5.1 °C 4.8 °C 98 % 13.2 km/h SE 19.8 mm 0.2 mm/h 993.0 hPa 5.0 w/m^2
4:20 p.m. 5.1 °C 4.8 °C 98 % 13.8 km/h SE 19.8 mm 0.1 mm/h 992.9 hPa 3.0 w/m^2
4:30 p.m. 5.1 °C 4.9 °C 98 % 15.0 km/h SE 19.8 mm 0.1 mm/h 992.8 hPa 2.0 w/m^2
4:40 p.m. 5.0 °C 4.9 °C 99 % 11.1 km/h SE 19.8 mm 0.1 mm/h 992.6 hPa 1.0 w/m^2
4:50 p.m. 5.0 °C 4.8 °C 98 % 12.1 km/h SE 19.8 mm 0.0 mm/h 992.5 hPa 1.0 w/m^2
5 p.m. 5.1 °C 4.9 °C 98 % 11.4 km/h SE 19.8 mm 0.0 mm/h 992.5 hPa 1.0 w/m^2
5:10 p.m. 5.1 °C 4.8 °C 98 % 12.5 km/h SE 19.8 mm 0.0 mm/h 992.4 hPa 1.0 w/m^2
5:20 p.m. 5.1 °C 5.0 °C 99 % 11.7 km/h SE 19.8 mm 0.1 mm/h 992.3 hPa 1.0 w/m^2
5:30 p.m. 5.0 °C 4.9 °C 98 % 10.3 km/h SE 19.9 mm 0.3 mm/h 992.2 hPa 1.0 w/m^2
5:40 p.m. 5.0 °C 4.9 °C 98 % 12.1 km/h E 20.2 mm 1.7 mm/h 992.2 hPa 1.0 w/m^2
5:50 p.m. 5.0 °C 4.9 °C 99 % 10.4 km/h E 20.5 mm 1.9 mm/h 992.2 hPa 1.0 w/m^2
6 p.m. 5.0 °C 4.8 °C 98 % 11.2 km/h E 20.9 mm 2.4 mm/h 992.1 hPa 0.0 w/m^2
6:10 p.m. 5.0 °C 4.8 °C 99 % 10.7 km/h E 21.2 mm 1.9 mm/h 992.1 hPa 1.0 w/m^2
6:20 p.m. 5.0 °C 4.8 °C 98 % 12.0 km/h E 21.5 mm 1.9 mm/h 992.1 hPa 1.0 w/m^2
6:30 p.m. 4.9 °C 4.8 °C 98 % 13.5 km/h NE 21.8 mm 1.8 mm/h 992.1 hPa 1.0 w/m^2
6:40 p.m. 4.9 °C 4.7 °C 98 % 14.6 km/h NE 22.2 mm 2.1 mm/h 992.1 hPa 1.0 w/m^2
6:50 p.m. 4.9 °C 4.6 °C 98 % 16.4 km/h NE 22.4 mm 1.5 mm/h 992.2 hPa 1.0 w/m^2
7 p.m. 4.8 °C 4.6 °C 98 % 17.2 km/h NE 22.7 mm 1.9 mm/h 992.2 hPa 1.0 w/m^2
7:10 p.m. 4.8 °C 4.6 °C 98 % 17.9 km/h NE 23.1 mm 2.0 mm/h 992.3 hPa 1.0 w/m^2
7:20 p.m. 4.7 °C 4.5 °C 98 % 19.3 km/h NE 23.4 mm 2.1 mm/h 992.4 hPa 1.0 w/m^2
7:30 p.m. 4.7 °C 4.4 °C 97 % 21.8 km/h NE 23.7 mm 1.5 mm/h 992.3 hPa 1.0 w/m^2
7:40 p.m. 4.7 °C 4.3 °C 97 % 23.1 km/h NE 24.0 mm 1.8 mm/h 992.3 hPa 1.0 w/m^2
7:50 p.m. 4.6 °C 4.2 °C 96 % 22.9 km/h NE 24.3 mm 2.2 mm/h 992.4 hPa 0.0 w/m^2
8 p.m. 4.6 °C 4.1 °C 96 % 24.4 km/h NE 24.7 mm 2.1 mm/h 992.5 hPa 0.0 w/m^2
8:10 p.m. 4.1 °C 3.6 °C 96 % 26.4 km/h NE 25.0 mm 1.7 mm/h 992.7 hPa 0.0 w/m^2
8:20 p.m. 3.7 °C 3.2 °C 96 % 26.5 km/h N 25.2 mm 1.6 mm/h 992.8 hPa 0.0 w/m^2
8:30 p.m. 3.4 °C 2.9 °C 96 % 26.8 km/h N 25.4 mm 1.2 mm/h 993.0 hPa 0.0 w/m^2
8:40 p.m. 2.9 °C 2.4 °C 96 % 29.6 km/h N 25.7 mm 1.4 mm/h 993.1 hPa 0.0 w/m^2
8:50 p.m. 2.5 °C 1.9 °C 95 % 27.9 km/h N 25.9 mm 1.0 mm/h 993.2 hPa 0.0 w/m^2
9 p.m. 2.3 °C 1.7 °C 95 % 29.3 km/h N 26.1 mm 1.8 mm/h 993.3 hPa 0.0 w/m^2
9:10 p.m. 1.8 °C 1.1 °C 95 % 26.6 km/h N 26.4 mm 1.3 mm/h 993.5 hPa 0.0 w/m^2
9:20 p.m. 1.5 °C 0.9 °C 95 % 25.5 km/h N 26.5 mm 0.9 mm/h 993.7 hPa 0.0 w/m^2
9:30 p.m. 1.3 °C 0.7 °C 96 % 22.6 km/h N 26.7 mm 0.9 mm/h 993.9 hPa 0.0 w/m^2
9:40 p.m. 1.0 °C 0.4 °C 95 % 27.2 km/h N 26.8 mm 0.8 mm/h 994.0 hPa 0.0 w/m^2
9:50 p.m. 0.9 °C 0.3 °C 96 % 24.9 km/h N 26.9 mm 0.6 mm/h 994.2 hPa 0.0 w/m^2
10 p.m. 0.8 °C 0.3 °C 96 % 23.1 km/h N 27.0 mm 0.6 mm/h 994.3 hPa 0.0 w/m^2
10:10 p.m. 0.8 °C 0.2 °C 96 % 25.2 km/h N 27.1 mm 0.5 mm/h 994.4 hPa 0.0 w/m^2
10:20 p.m. 0.7 °C 0.2 °C 96 % 22.0 km/h N 27.2 mm 0.5 mm/h 994.6 hPa 0.0 w/m^2
10:30 p.m. 0.7 °C 0.2 °C 96 % 25.0 km/h N 27.2 mm 0.4 mm/h 994.7 hPa 0.0 w/m^2
10:40 p.m. 0.8 °C 0.2 °C 96 % 24.2 km/h N 27.3 mm 0.5 mm/h 994.9 hPa 0.0 w/m^2
10:50 p.m. 0.8 °C 0.3 °C 96 % 24.3 km/h N 27.4 mm 0.5 mm/h 995.2 hPa 0.0 w/m^2
11 p.m. 1.0 °C 0.4 °C 95 % 23.8 km/h N 27.5 mm 0.5 mm/h 995.2 hPa 0.0 w/m^2
11:10 p.m. 1.2 °C 0.6 °C 95 % 26.9 km/h N 27.5 mm 0.2 mm/h 995.3 hPa 1.0 w/m^2
11:20 p.m. 1.3 °C 0.7 °C 95 % 25.7 km/h N 27.5 mm 0.1 mm/h 995.5 hPa 1.0 w/m^2
11:30 p.m. 1.5 °C 0.8 °C 94 % 28.7 km/h N 27.5 mm 0.1 mm/h 995.6 hPa 1.0 w/m^2
11:40 p.m. 1.6 °C 0.7 °C 93 % 30.5 km/h N 27.6 mm 0.1 mm/h 995.8 hPa 1.0 w/m^2