National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Weather observations for the past three days for
Ogallala, Searle Field Airport
Metric (Imperial)
Date Time (mst) Wind (kph) Vis. (km) Weather Sky Cond. Temperature (ºC) Relative Humidity Wind Chill (°C) Heat Index (°C) Pressure Precipitation (cm)
Air Dwpt 6 hour altimeter (cm) sea level (mb) 1 hr 3 hr 6 hr
Max. Min.
09 04:15 N 15 16.09 Overcast OVC020 0.9 -3.1 75% -3 77.32 0.0
09 03:55 N 17 16.09 Overcast OVC020 1 -3 75% -3 77.29 0.0
09 03:35 NW 19 16.09 Overcast OVC022 1 -3.2 74% -3 77.29 0.0
09 03:15 NW 17 16.09 Overcast OVC022 1 -3 75% -3 77.29 0.0
09 02:55 NW 17 16.09 Overcast OVC022 1 -3.1 74% -3 77.29 0.0
09 02:35 NW 19 16.09 Overcast OVC022 0.8 -3 76% -4 77.27 0.0
09 02:15 NW 11 16.09 Overcast OVC020 0.3 -2.7 81% -3 77.27 0.0
09 01:55 SW 6 16.09 Overcast OVC020 -0.3 -3 82% 77.24 0.0
09 01:35 SW 7 16.09 Overcast OVC020 -0.5 -3 83% -3 77.24 0.0
09 01:15 W 7 16.09 Overcast OVC020 -0.5 -3.1 83% -3 77.24 0.0
09 00:55 NW 7 16.09 Overcast OVC022 -0.7 -3.2 83% -3 77.24 0.0
09 00:35 NW 11 16.09 Overcast OVC022 -0.7 -3.3 83% -4 77.19 0.0
09 00:15 NW 15 16.09 Overcast OVC021 -0.8 -3.1 85% -5 77.17 0.0
08 23:55 W 11 16.09 Mostly Cloudy BKN019 -1.4 -3.3 87% -5 77.17 0.0
08 23:35 W 7 16.09 Fair CLR -2.2 -4 88% -5 77.17 0.0
08 23:15 N 9 16.09 Fair CLR -0.6 -3 84% -3 77.14 0.0
08 22:55 N 17 16.09 Fair CLR -0.2 -2.7 5.5 -0.2 83% -5 77.09 0.0
08 22:35 N 26 G 33 16.09 Fair CLR 0 -2.7 82% -6 77.09 0.0
08 22:15 N 20 G 30 16.09 Fair CLR -0.1 -2.6 83% -5 77.09 0.0
08 21:55 N 22 G 33 16.09 Fair CLR 0 -2.6 83% -5 77.06 0.0
08 21:35 N 15 16.09 Fair CLR 0.1 -2.5 83% -4 77.06 0.0
08 21:15 N 24 16.09 Fair CLR 0.3 -2.4 82% -5 77.01 0.0
08 20:55 N 24 G 35 16.09 Fair CLR 0.7 -2.2 81% -4 76.99 0.0
08 20:35 N 28 G 37 16.09 Fair CLR 1 -2.3 79% -5 76.94 0.0
08 20:15 N 35 G 43 16.09 Fair and Breezy CLR 1.3 -2.1 78% -5 76.91 0.0
08 19:55 N 31 16.09 Fair CLR 1.4 -2 78% -4 76.91 0.0
08 19:35 N 31 G 41 16.09 Fair CLR 1.9 -1.9 76% -4 76.91 0.0
08 19:15 N 26 16.09 Fair CLR 2 -1.1 80% -3 76.89 0.0
08 18:55 N 26 16.09 Fair CLR 2.4 -1 79% -3 76.86 0.0
08 18:35 N 17 16.09 Fair CLR 2.7 -0.7 79% -1 76.81 0.0
08 18:15 N 20 G 30 16.09 Fair CLR 3.1 -0.5 78% -1 76.81 0.0
08 17:55 N 15 16.09 Fair CLR 4 -0.3 74% 1 76.78 0.0
08 17:35 N 15 16.09 Fair CLR 4.6 -1 67% 2 76.73 0.0
08 17:15 N 15 16.09 Fair CLR 5.1 -1.2 64% 2 76.68 0.0
08 16:55 N 22 16.09 Fair CLR 5.8 -1.3 11.8 5.8 61% 2 76.66 0.0
08 16:35 N 30 G 50 16.09 Fair CLR 6.6 -2 55% 3 76.61 0.0
08 16:15 N 37 G 57 16.09 Fair and Breezy CLR 7.2 -2.5 50% 3 76.58 0.0
08 15:55 NW 39 G 52 16.09 Partly Cloudy and Breezy SCT046 7.9 -2.6 48% 4 76.58 0.0
08 15:35 NW 41 G 59 16.09 Mostly Cloudy and Breezy BKN048 8.6 -2.7 45% 4 76.53 0.0
08 15:15 NW 48 G 63 16.09 Partly Cloudy and Windy SCT050 9.2 -2.6 44% 5 76.5 0.0
08 14:55 N 43 G 63 16.09 Mostly Cloudy and Windy BKN060 9.1 -2.7 44% 5 76.48 0.0
08 14:35 NW 41 G 61 16.09 Mostly Cloudy and Breezy BKN060 9.7 -3.6 39% 6 76.43 0.0
08 14:15 NW 52 G 61 16.09 Partly Cloudy and Windy SCT060 10.2 -3.7 38% 76.38 0.0
08 13:55 N 46 G 69 16.09 Partly Cloudy and Windy SCT060 10.4 -4.1 36% 76.35 0.0
08 13:35 NW 50 G 70 16.09 Fair and Windy CLR 10.2 -4.8 35% 76.33 0.0
08 13:15 NW 56 G 76 16.09 Fair and Windy CLR 10.6 -5 33% 76.3 0.0
08 12:55 NW 63 G 72 16.09 Fair and Windy CLR 11 -5.1 32% 76.3 0.0
08 12:35 NW 56 G 80 16.09 Partly Cloudy and Windy SCT065 11 -5.5 31% 76.3 0.0
08 12:15 NW 56 G 72 16.09 Partly Cloudy and Windy SCT065 11.6 -5.4 30% 76.3 0.0
08 11:55 NW 48 G 78 16.09 Fair and Windy CLR 11.5 -5.6 30% 76.3 0.0
08 11:35 NW 65 G 81 16.09 Fair and Windy CLR 11.2 -6.4 29% 76.28 0.0
08 11:15 NW 59 G 78 16.09 Fair and Windy CLR 11.3 -6.3 29% 76.28 0.0
08 10:55 NW 54 G 78 16.09 Fair and Windy CLR 11 -6.4 11 1.5 29% 76.28 0.0
08 10:35 NW 67 G 80 16.09 Fair and Windy CLR 10.8 -6.9 28% 76.25 0.0
08 10:15 NW 52 G 81 16.09 Fair and Windy CLR 10.7 -6.8 29% 76.3 0.0
08 09:55 NW 50 G 80 16.09 Fair and Windy CLR 10.5 -7 29% 76.3 0.0
08 09:35 NW 59 G 74 16.09 Fair and Windy CLR 10.3 -7.1 29% 76.3 0.0
08 09:15 NW 41 G 56 16.09 Fair and Breezy CLR 9.3 -6 34% 5 76.3 0.0
08 08:55 NW 39 G 50 16.09 Fair and Breezy CLR 8.2 -5.2 39% 4 76.3 0.0
08 08:35 NW 37 G 44 16.09 Fair and Breezy CLR 7.3 -5.2 41% 3 76.28 0.0
08 08:15 NW 26 16.09 Fair CLR 6.6 -4.9 44% 3 76.3 0.0
08 07:55 NW 28 G 39 16.09 Fair CLR 5.9 -4.9 46% 2 76.25 0.0
08 07:35 NW 35 G 43 16.09 Fair and Breezy CLR 5.1 -4.7 50% 0 76.25 0.0
08 07:15 NW 31 G 39 16.09 Fair CLR 3.6 -3.6 60% -2 76.23 0.0
08 06:55 NW 28 G 37 16.09 Fair CLR 2.9 -3 66% -2 76.2 0.0
08 06:35 NW 30 16.09 Fair CLR 2.5 -2.8 68% -3 76.17 0.0
08 06:15 NW 33 G 43 16.09 Fair and Breezy CLR 2.6 -2.5 69% -3 76.15 0.0
08 05:55 NW 31 G 39 16.09 Fair CLR 2.5 -2.2 71% -3 76.12 0.0
08 05:35 NW 28 16.09 Fair CLR 2.9 -2 71% -2 76.1 0.0
08 05:15 NW 20 16.09 Fair CLR 2.5 -1.1 77% -2 76.12 0.0
08 04:55 NW 13 16.09 Fair CLR 1.7 -0.7 13.3 0.8 84% -2 76.1 0.0
08 04:35 SW 7 16.09 Fair CLR 0.9 -1.1 87% -1 76.07 0.0
08 04:15 W 11 16.09 Fair CLR 2.7 0 83% 0 76.07 0.0
08 03:55 NW 13 16.09 Fair CLR 3.1 0.2 81% 0 76.05 0.0
08 03:35 NW 20 G 35 16.09 Fair CLR 3.5 0.3 80% -0 76.02 0.0
08 03:15 NW 19 16.09 Fair CLR 3.5 0.4 80% -0 76 0.0
08 02:55 NW 17 16.09 Fair CLR 3.7 0.5 80% 0 75.97 0.0
08 02:35 W 11 16.09 Fair CLR 3.5 0 78% 1 75.97 0.0
08 02:15 W 11 16.09 Fair CLR 4.3 0.3 76% 2 75.95 0.0
08 01:55 NW 17 16.09 Fair CLR 5.5 0.5 71% 2 75.95 0.0
08 01:35 NW 28 G 39 16.09 Partly Cloudy SCT080 6 0.6 69% 2 75.9 0.0
08 01:15 NW 41 G 52 16.09 Mostly Cloudy and Breezy BKN080 6.8 0.7 65% 2 75.87 0.0
08 00:55 NW 41 G 69 16.09 Fair and Breezy CLR 7.5 1 64% 3 75.84 0.0
08 00:35 NW 43 G 56 16.09 Partly Cloudy and Windy SCT090 9.8 1.7 57% 6 75.77 0.0
08 00:15 NW 28 G 43 16.09 Mostly Cloudy BKN090 12 -0.9 41% 75.72 0.0
07 23:55 NW 19 G 57 16.09 Overcast OVC090 13.3 -2.4 34% 75.67 0.0
07 23:35 W 11 16.09 Overcast OVC100 11.6 -1.5 40% 75.62 0.0
07 23:15 W 11 16.09 Overcast OVC100 11.4 -1.5 41% 75.62 0.0
07 22:55 NW 20 16.09 Mostly Cloudy SCT090 BKN110 9.8 -1.1 11 5.1 47% 7 75.67 0.0
07 22:35 W 11 16.09 Mostly Cloudy BKN090 9.3 -0.7 50% 8 75.69 0.0
07 22:15 W 15 16.09 Overcast BKN100 OVC120 9.4 -0.6 50% 7 75.69 0.0
07 21:55 W 11 16.09 Overcast OVC110 8.3 -0.8 53% 7 75.67 0.0
07 21:35 W 13 16.09 Mostly Cloudy BKN110 8.4 -1 52% 7 75.67 0.0
07 21:15 W 11 16.09 Mostly Cloudy BKN100 BKN120 7.5 -1.2 54% 6 75.67 0.0
07 20:55 SW 7 16.09 Mostly Cloudy BKN100 BKN120 8.7 -1.5 49% 8 75.67 0.0
07 20:35 W 9 16.09 Partly Cloudy SCT100 SCT120 9.7 -1.5 46% 9 75.67 0.0
07 20:15 W 9 16.09 Mostly Cloudy BKN090 BKN120 8.5 -1.9 48% 7 75.67 0.0
07 19:55 W 7 16.09 Mostly Cloudy BKN090 BKN120 7.4 -2.6 49% 6 75.67 0.0
07 19:35 W 11 16.09 Mostly Cloudy SCT090 BKN120 5.4 -2.5 57% 3 75.69 0.0
07 19:15 W 7 16.09 Partly Cloudy SCT110 5.7 -3.5 52% 4 75.69 0.0
07 18:55 SW 6 16.09 Fair CLR 7.7 -3.7 45% 75.72 0.0
07 18:35 Calm 16.09 Fair CLR 8.3 -3.6 43% 75.72 0.0
07 18:15 Calm 16.09 Fair CLR 9.9 -3.8 38% 75.74 0.0
07 17:55 Calm 16.09 Fair CLR 10 -3.8 38% 75.77 0.0
07 17:35 Calm 16.09 Fair CLR 10.5 -4 36% 75.77 0.0
07 17:15 Calm 11.27 Fair CLR 10.5 -3.4 38% 75.77 0.0
07 16:55 SW 6 16.09 Fair CLR 10.9 -3.9 18.8 10.9 35% 75.77 0.0
07 16:35 W 6 16.09 Fair CLR 12 -3.6 34% 75.77 0.0
07 16:15 W 6 16.09 Fair CLR 12.5 -3.3 33% 75.77 0.0
07 15:55 SW 6 16.09 Fair CLR 13.2 -4.7 29% 75.77 0.0
07 15:35 W 11 16.09 Fair CLR 15.1 -4.6 26% 75.77 0.0
07 15:15 SW 15 16.09 Fair CLR 16 -5.5 23% 75.77 0.0
07 14:55 W 24 G 30 16.09 Fair CLR 16.2 -5.5 22% 75.79 0.0
07 14:35 SW 19 16.09 Fair CLR 16.8 -6.1 20% 75.77 0.0
07 14:15 W 17 16.09 Fair CLR 17 -6.5 20% 75.77 0.0
07 13:55 W 15 16.09 Fair CLR 18.4 -6.2 18% 75.79 0.0
07 13:35 W 9 16.09 Fair CLR 17.4 -4.7 22% 75.79 0.0
07 13:15 W 13 G 28 16.09 Fair CLR 17.4 -4.6 22% 75.82 0.0
07 12:55 W 6 G 26 16.09 Fair CLR 16.5 -4.5 24% 75.84 0.0
07 12:35 W 13 16.09 Fair CLR 16.1 -3.7 26% 75.9 0.0
07 12:15 NW 15 16.09 Fair CLR 15.9 -4 25% 75.92 0.0
07 11:55 NW 24 G 35 16.09 Fair CLR 15.5 -4.4 25% 75.95 0.0
07 11:35 NW 22 G 33 16.09 Fair CLR 15.6 -4.1 26% 75.97 0.0
07 11:15 NW 17 16.09 Fair CLR 14.8 -3.7 28% 76.02 0.0
07 10:55 NW 28 G 35 16.09 Fair CLR 14.5 -3.9 14.6 0.3 28% 76.05 0.0
07 10:35 NW 24 16.09 Fair CLR 14.4 -3.4 29% 76.07 0.0
07 10:15 NW 26 G 35 16.09 Fair CLR 13.9 -2.8 32% 76.07 0.0
07 09:55 NW 24 16.09 Fair CLR 13.6 -2.7 32% 76.07 0.0
07 09:35 NW 26 16.09 Fair CLR 13.2 -2.6 34% 76.07 0.0
07 09:15 NW 20 G 28 16.09 Fair CLR 12.9 -2 36% 76.1 0.0
07 08:55 S 9 16.09 Fair CLR 9.7 -1 48% 9 76.12 0.0
07 08:35 W 9 16.09 Fair CLR 7.8 -0.9 54% 6 76.15 0.0
07 08:15 SW 11 16.09 Fair CLR 5.8 -1.2 61% 4 76.15 0.0
07 07:55 W 11 16.09 Fair CLR 4 -1.5 68% 2 76.15 0.0
07 07:35 SW 15 16.09 Fair CLR 3.2 -1.5 72% -0 76.17 0.0
07 07:15 W 11 16.09 Fair CLR 1.8 -1.7 78% -1 76.17 0.0
07 06:55 SW 11 16.09 Fair CLR 2 -1.8 76% -1 76.15 0.0
07 06:35 W 9 16.09 Fair CLR 1.7 -2 77% -1 76.15 0.0
07 06:15 SW 7 16.09 Fair CLR 1.3 -1.6 81% -1 76.12 0.0
07 05:55 SW 9 16.09 Fair CLR 2.1 -1.6 77% -0 76.12 0.0
07 05:35 SW 11 16.09 Fair CLR 2.6 -1.4 75% -0 76.15 0.0
07 05:15 SW 11 16.09 Fair CLR 2 -1.5 78% -1 76.12 0.0
07 04:55 SW 11 16.09 Fair CLR 1.8 -1.5 9.9 1 79% -1 76.12 0.0
07 04:35 SW 9 16.09 Fair CLR 1 -2.1 80% -2 76.1 0.0
07 04:15 SW 9 16.09 Fair CLR 1.3 -1.9 80% -1 76.07 0.0
07 03:55 W 9 16.09 Fair CLR 4.1 -1 70% 2 76.07 0.0
07 03:35 W 17 16.09 Fair CLR 5.4 -0.7 65% 2 76.07 0.0
07 03:15 NW 15 16.09 Fair CLR 1.9 -1.8 77% -2 76.07 0.0
07 02:55 W 13 16.09 Fair CLR 2.5 -1.6 75% -1 76.07 0.0
07 02:35 W 11 16.09 Fair CLR 3.4 -1.5 71% 1 76.07 0.0
07 02:15 W 15 16.09 Fair CLR 6.4 -0.5 62% 4 76.07 0.0
07 01:55 NW 20 16.09 Fair CLR 6.7 -0.6 60% 3 76.07 0.0
07 01:35 NW 22 16.09 Fair CLR 7.2 -0.6 58% 4 76.02 0.0
07 01:15 NW 26 G 35 16.09 Fair CLR 7.8 -0.6 56% 4 76.02 0.0
07 00:55 NW 24 16.09 Fair CLR 8 -1 53% 5 76 0.0
07 00:35 NW 28 G 37 16.09 Fair CLR 8.9 -1.2 49% 6 75.97 0.0
07 00:15 NW 28 G 37 16.09 Fair CLR 9.7 -1.2 47% 7 75.97 0.0
06 23:55 NW 26 16.09 Fair CLR 9.7 -1.1 47% 7 75.97 0.0
06 23:35 NW 22 G 30 16.09 Fair CLR 9.3 -1 49% 7 75.95 0.0
06 23:15 NW 19 16.09 Fair CLR 6.8 -1 58% 4 75.95 0.0
06 22:55 W 13 16.09 Fair CLR 9 -0.7 14.4 3.2 51% 7 75.95 0.0
06 22:35 NW 24 16.09 Fair CLR 10.7 -0.5 46% 75.95 0.0
06 22:15 NW 30 G 39 16.09 Fair CLR 11.3 -0.6 44% 75.92 0.0
06 21:55 NW 24 G 30 16.09 Fair CLR 11.1 -0.5 45% 75.92 0.0
06 21:35 Calm 16.09 Fair CLR 3.7 -0.7 73% 75.95 0.0
06 21:15 Calm 16.09 Fair CLR 4.4 -0.4 71% 75.95 0.0
06 20:55 Calm 16.09 Fair CLR 5 0.1 71% 75.95 0.0
06 20:35 W 7 16.09 Fair CLR 3.7 -0.3 75% 2 75.95 0.0
06 20:15 W 13 16.09 Fair CLR 4.2 0 74% 1 75.95 0.0
06 19:55 NW 9 16.09 Fair CLR 5.3 0 69% 3 75.95 0.0
06 19:35 W 11 16.09 Fair CLR 6.2 0.3 66% 4 75.95 0.0
06 19:15 N 6 16.09 Fair CLR 9.6 1.3 57% 75.92 0.0
06 18:55 NW 11 16.09 Partly Cloudy SCT110 10.8 0.9 51% 75.92 0.0
06 18:35 NW 19 16.09 Partly Cloudy SCT110 11.4 0.4 47% 75.9 0.0
06 18:15 NW 15 16.09 Fair CLR 12.2 0 43% 75.9 0.0
06 17:55 N 22 16.09 Partly Cloudy SCT095 14.4 0 38% 75.87 0.0
06 17:35 NW 17 16.09 Fair CLR 11.5 -0.7 43% 75.82 0.0
06 17:15 NW 17 16.09 Fair CLR 12.6 -0.5 41% 75.79 0.0
06 16:55 NW 15 16.09 Partly Cloudy SCT095 14.6 -0.4 21.8 8.9 36% 75.77 0.0
06 16:35 N 24 G 43 16.09 Partly Cloudy SCT095 SCT120 16.8 -0.6 31% 75.74 0.0
06 16:15 NW 22 16.09 Mostly Cloudy SCT095 BKN120 18.2 -1.9 26% 75.72 0.0
06 15:55 NW 30 16.09 Partly Cloudy SCT095 SCT120 19.1 -2 24% 75.69 0.0
06 15:35 W 35 G 43 16.09 Partly Cloudy and Breezy SCT095 SCT120 19.6 -0.4 26% 75.67 0.0
06 15:15 W 39 G 50 16.09 Fair and Breezy CLR 20 -0.7 25% 75.64 0.0
06 14:55 NW 41 G 54 16.09 Fair and Breezy CLR 20.5 -1.3 23% 75.64 0.0
06 14:35 W 41 G 52 16.09 Partly Cloudy and Breezy SCT095 21.1 -1.1 23% 75.62 0.0
06 14:15 W 50 G 61 16.09 Partly Cloudy and Windy SCT095 21.6 -0.5 23% 75.62 0.0
06 13:55 NW 31 G 41 16.09 Partly Cloudy SCT095 21.6 -0.7 23% 75.62 0.0
06 13:35 NW 28 G 43 16.09 Fair CLR 21.1 -0.6 23% 75.64 0.0
06 13:15 NW 37 G 54 16.09 Fair and Breezy CLR 21 -0.9 23% 75.64 0.0
06 12:55 NW 28 G 43 16.09 Fair CLR 20.1 -0.1 26% 75.67 0.0
06 12:35 NW 30 G 41 16.09 Fair CLR 18.5 -0.1 29% 75.69 0.0
06 12:15 NW 35 16.09 Fair and Breezy CLR 18.6 0 29% 75.72 0.0
06 11:55 NW 24 G 35 16.09 Fair CLR 17.3 0.7 33% 75.77 0.0
06 11:35 SW 7 16.09 Partly Cloudy SCT120 11.9 3 55% 75.79 0.0
06 11:15 W 6 16.09 Mostly Cloudy BKN110 9.7 3.1 64% 75.79 0.0
06 10:55 W 7 16.09 Mostly Cloudy BKN110 8.6 2.3 8.6 1.2 65% 8 75.84 0.0
06 10:35 W 7 16.09 Fair CLR 7.9 2.5 69% 7 75.84 0.0
06 10:15 W 13 16.09 Fair CLR 7.5 2.2 69% 5 75.87 0.0
06 09:55 W 9 16.09 Fair CLR 7 2.1 71% 5 75.84 0.0
06 09:35 W 7 16.09 Fair CLR 6.4 1.9 73% 5 75.87 0.0
06 09:15 W 9 16.09 Fair CLR 5.7 1.6 75% 4 75.9 0.0
06 08:55 Calm 16.09 Fair CLR 5 1.6 79% 75.9 0.0
06 08:35 Calm 16.09 Fair CLR 4.1 1.1 81% 75.9 0.0
06 08:15 Calm 16.09 Fair CLR 3.5 1 84% 75.9 0.0
06 07:55 Calm 16.09 Fair CLR 3.1 0.6 84% 75.9 0.0
06 07:35 Calm 16.09 Fair CLR 2.9 0.5 84% 75.9 0.0
06 07:15 Calm 16.09 Fair CLR 2.6 0.1 84% 75.9 0.0
06 06:55 SW 7 16.09 Fair CLR 2.4 0 84% 1 75.9 0.0
06 06:35 W 6 16.09 Fair CLR 2.6 0 83% 75.87 0.0
06 06:15 Calm 16.09 Fair CLR 2.4 0 84% 75.84 0.0
06 05:55 Calm 16.09 Fair CLR 2.7 0 83% 75.84 0.0
06 05:35 Calm 16.09 Fair CLR 2.2 0 86% 75.9 0.0
06 05:15 Calm 16.09 Fair CLR 1.4 -0.3 89% 75.9 0.0
06 04:55 NE 6 16.09 Fair CLR 1.7 -0.2 5.9 1.6 87% 75.92 0.0
06 04:35 E 6 16.09 Fair CLR 2.3 -0.1 84% 75.92 0.0
Date Time (mst) Wind (kph) Vis. (km) Weather Sky Cond. Air Dwpt Max. Min. Relative Humidity Wind Chill (°C) Heat Index (°C) altimeter (cm) sea level (mb) 1 hr 3 hr 6 hr
6 hour
Temperature (ºC) Pressure Precipitation (cm)