Swamp Angel Study Plot Full Hourly Data – Center for Snow and Avalanche Studies

Datetime	Minimum Air Temperature (C°), Lower	Maximum Air Temperature (C°), Lower	Relative Humidity (%), Lower	Peak Wind Gust (ms), Upper	Wind Speed (ms)	Wind Direction (°), Upper	Solar Radiation-Down Looking, Broadband (W/m²)	Solar Radiation-Up Looking, Broadband (W/m²)	Longwave Radiation-Up Looking (W/m²)	Snow Surface Temperature (C°)	Snow Depth (m)	SWE (mm)	Barometer (inHg)
2026-09-20 08:00	3.968	8.37	37.88	4.916	1.325	218.6	71.71	295	221.1	2.637	0.02	0	30.33
2026-09-20 09:00	8.22	9.05	38.63	5.096	1.413	249.6	89.3	501.4	224.4	10.93	0.03	0	30.34
2026-09-20 10:00	8.47	9.05	39.78	5.341	1.772	239.7	107.2	641.4	227.5	16.74	0.03	0	30.35
2026-09-20 11:00	8.92	9.8	40.54	5.88	1.996	232.9	98.7	608.2	234.1	19.16	0.02	0	30.35
2026-09-20 12:00	8.97	10.71	33.34	5.553	2.138	229.9	102.4	624.6	238.2	19.7	0.02	0	30.35
2026-09-20 13:00	9.88	11.02	36.82	6.092	2.291	224.7	127.7	781.1	240.8	23.77	0.01	0	30.34
2026-09-20 14:00	10.77	11.9	34.34	6.272	2.123	220.4	134.2	827	242.6	26.79	0.02	0	30.34
2026-09-20 15:00	11.23	11.91	30.32	6.893	2.25	224.6	109.2	692	236.1	24.22	0.04	0	30.33
2026-09-20 16:00	10.97	11.76	33.77	5.57	1.828	214.6	72.66	458.4	234.9	17.12	0.03	0	30.32
2026-09-20 17:00	8.75	11.08	44.7	4.345	1.358	213.1	14.55	217.9	234.8	9.09	0.01	0	30.32
2026-09-20 18:00	6.235	9.12	56.71	2.074	0.634	248.5	2.269	18	234.8	5.346	0.02	0	30.33
2026-09-20 19:00	4.726	6.529	70.51	1.682	0.412	277.6	0.721	-2.483	234.9	3.233	0.04	2	30.34
2026-09-20 20:00	3.826	4.769	76.87	1.241	0.301	267.3	0.594	-3.764	233.9	2.007	0.05	2	30.35
2026-09-20 21:00	2.716	3.826	79.89	0.849	0.187	266.6	0.604	-3.697	227.6	0.72	0.03	2	30.35
2026-09-20 22:00	2.446	2.94	78.01	1.666	0.292	273.5	0.791	-3.25	226.7	-0.008	0.03	1	30.36
2026-09-20 23:00	1.813	3.306	80.7	1.829	0.273	253.8	0.67	-3.76	221.6	-0.779	0.04	2	30.36
2026-09-21 01:00	1.503	2.123	77.02	1.421	0.588	269.3	0.593	-3.513	216.5	-1.773	0.02	2	30.36
2026-09-21 02:00	0.59	1.645	77.32	1.78	0.604	262.2	0.562	-3.549	214.6	-2.288	0.03	2	30.35
2026-09-21 03:00	1.009	1.434	76.45	1.241	0.55	263.9	0.697	-3.252	213.6	-2.687	0.04	2	30.34
2026-09-21 04:00	0.235	1.279	80.8	1.225	0.316	269.4	0.579	-3.649	212	-3.24	0.02	2	30.34
2026-09-21 05:00	-0.015	0.673	81.4	0.849	0.142	261.4	0.732	-3.466	210.9	-3.573	0.02	2	30.34
2026-09-21 06:00	-0.087	0.179	79.34	0.751	0.066	253.3	1.007	-2.419	210	-3.934	0.03	2	30.35
2026-09-21 07:00	-0.015	0.857	80.1	1.143	0.102	256.1	5.995	33.07	222.4	-2.874	0.04	1	30.35
2026-09-21 08:00	0.561	6.953	53.25	1.225	0.242	103.9	69.85	294.6	213.9	2.039	0.03	0	30.36
2026-09-21 09:00	6.953	8.92	39	3.022	1.163	81	91.4	501.7	219.2	11.22	0.03	0	30.36
2026-09-21 10:00	8.5	9.98	33.59	5.308	1.863	198.9	118.3	676.3	223.8	18.37	0.01	0	30.37
2026-09-21 11:00	9.58	10.98	30.3	5.129	1.994	221.8	139	809	228.6	24.47	0.03	0	30.37
2026-09-21 12:00	10.7	11.82	29.99	4.786	1.458	204.2	152.3	886	236.6	29.45	0.03	0	30.36
2026-09-21 13:00	11.29	12.57	28.94	3.887	1.294	72.44	110.4	662.8	250.9	26.3	0.03	0	30.35
2026-09-21 14:00	12.31	13.39	32.2	4.426	1.475	229.4	109.5	667.6	274.4	27.2	0.03	0	30.34
2026-09-21 15:00	12.05	12.98	34.38	3.267	0.961	226.5	47.33	305.1	279.5	19	0.02	0	30.33
2026-09-21 16:00	11.67	12.08	34.32	2.728	0.82	247.1	26.08	164.5	298.5	14.55	0.03	0	30.33
2026-09-21 17:00	10.75	11.81	36.7	3.985	0.965	245	17.07	106.4	306.3	12.27	0.04	0	30.33
2026-09-21 18:00	8.02	10.84	53.72	1.699	0.38	262.1	8.95	54.28	273.8	8.95	0.03	0	30.33
2026-09-21 19:00	5.656	8.06	65.43	1.192	0.359	264.8	0.098	-3.96	241.2	4.157	0.02	1	30.33
2026-09-21 20:00	4.588	5.685	69.8	1.209	0.47	268	0.499	-3.756	237.5	2.638	0.01	2	30.34
2026-09-21 21:00	3.856	4.63	71.27	1.16	0.571	264.3	0.545	-3.438	234.5	1.469	0.02	2	30.35
2026-09-21 22:00	3.389	3.869	71	1.094	0.645	260	0.548	-3.396	231.8	0.545	0.03	2	30.35
2026-09-21 23:00	3.081	3.813	72.83	1.307	0.713	262.2	0.507	-3.38	228.9	-0.261	0.04	2	30.35
2026-09-22 01:00	2.307	2.897	69.61	1.617	0.587	258.3	0.576	-3.206	225.1	-1.476	0.04	2	30.33
2026-09-22 02:00	2.913	4.951	60.33	3.43	1.433	250	0.7	-2.557	230	-1.307	0.04	1	30.33
2026-09-22 03:00	3.672	4.588	67.69	2.515	1.072	251.4	0.158	-3.451	234.2	-1.6	0.04	1	30.33
2026-09-22 04:00	3.375	4.839	65.72	3.12	1.019	244	0.463	-2.902	237.1	-1.615	0.05	1	30.33
2026-09-22 05:00	4.008	4.911	68.54	2.973	1.012	244.2	0.277	-3.304	235.4	-1.804	0.05	1	30.33
2026-09-22 06:00	3.519	4.644	73.24	2.205	0.92	257.4	0.2	-2.613	243.4	-1.701	0.04	1	30.33
2026-09-22 07:00	3.616	5.263	68.23	1.339	0.526	268.1	5.017	31.08	270.1	0.053	0.04	1	30.34
2026-09-22 08:00	5.22	7.544	59.17	1.405	0.229	220.8	16.93	105.9	311.5	5.46	0.04	0	30.34
2026-09-22 09:00	7.517	9.18	60.88	3.348	0.874	343.6	32.19	202.3	304	8.4	0.04	0	30.35
2026-09-22 10:00	9.14	11.11	53.09	6.354	1.992	28.43	88.5	514.9	279.1	14.26	0.03	0	30.34
2026-09-22 11:00	11.08	12.36	49.86	7.497	2.332	39.93	148.3	861	275	24.19	0.03	0	30.34
2026-09-22 12:00	11.15	13.04	42.35	4.443	1.54	50.36	130.9	765.4	271.1	26.43	0.03	0	30.34
2026-09-22 13:00	8.68	12.87	57.78	5.178	1.444	240.5	33.66	217.6	320.7	15.77	0.02	0	30.33
2026-09-22 14:00	6.686	11.35	75.8	5.439	1.172	272.4	43.84	275.7	315.3	15.78	0.03	0	30.31
2026-09-22 15:00	7.092	8.39	69.16	3.887	1.162	244.4	14.76	103.1	317.5	11.59	0.04	2	30.31
2026-09-22 16:00	4.307	7.896	88.9	3.495	0.699	245.2	11.83	85.5	324.8	9.22	0.05	1	30.33
2026-09-22 17:00	4.064	4.993	91.9	1.911	0.616	254.3	5.634	37.43	330	8.67	0.05	1	30.34
2026-09-22 18:00	3.939	4.12	92.7	3.071	0.934	239.4	6.058	38.48	296.1	7.2	0.04	2	30.32
2026-09-22 19:00	3.431	3.968	96.3	2.107	0.695	247	0.794	-0.753	305.2	5.946	0.04	1	30.33
2026-09-22 20:00	3.164	4.024	95.4	2.809	0.86	223.7	0.751	-0.682	328.2	5.725	0.04	2	30.34
2026-09-22 21:00	3.151	3.672	95.7	2.238	0.836	239.4	0.726	-0.562	317.6	5.439	0.05	1	30.34
2026-09-22 22:00	3.389	3.714	96.2	2.238	0.714	238	0.721	-0.506	329.6	5.356	0.03	1	30.35
2026-09-22 23:00	3.095	3.461	96.9	1.78	0.482	240.8	0.673	-0.609	327.7	5.311	0.03	2	30.36
2026-09-23 01:00	1.573	2.278	96.9	1.878	0.545	235.4	0.6	-0.819	318.2	3.406	0.04	1	30.35
2026-09-23 02:00	1.672	1.826	97.5	1.437	0.268	211	0.652	-0.752	298.5	3.435	0.04	2	30.34
2026-09-23 03:00	1.77	2.139	97.4	2.989	0.825	239.5	0.678	-0.764	294.9	3.107	0.04	1	30.33
2026-09-23 04:00	1.997	3.151	97.7	2.548	1.16	237.8	0.494	-0.724	295.1	2.996	0.03	1	30.33
2026-09-23 05:00	2.574	3.009	97	3.43	1.026	194.3	0.536	-0.95	299.9	3.126	0.04	1	30.33
2026-09-23 06:00	2.545	3.22	98.1	3.185	0.817	235.5	0.452	-0.71	296.5	2.932	0.04	1	30.33
2026-09-23 07:00	2.63	3.477	99.3	1.797	0.285	251.4	3.658	25.34	297.7	3.545	0.04	1	30.33
2026-09-23 08:00	3.445	4.713	94.6	1.78	0.454	235.6	9.61	73.31	312.6	5.845	0.04	1	30.34
2026-09-23 09:00	4.7	5.712	91.5	1.797	0.495	216.7	17.59	134.4	314.5	7.787	0.04	0	30.35
2026-09-23 10:00	5.629	6.713	87.8	2.254	0.659	247.3	30.71	228.6	312.6	10.59	0.04	0	30.35
2026-09-23 11:00	6.67	7.418	84.4	1.633	0.363	169.8	34.68	250.8	318.2	12.75	0.02	0	30.36
2026-09-23 12:00	6.924	7.53	84.7	2.499	1.226	89.6	37.3	266	320.6	13.79	0.02	0	30.35
2026-09-23 13:00	6.598	6.98	88.6	3.087	1.376	84.8	27.68	202.8	330.2	12.23	0.03	0	30.35
2026-09-23 14:00	6.305	7.092	79.29	3.234	1.239	96.6	34.05	254.6	317	13.31	0.03	0	30.34
2026-09-23 15:00	7.023	7.573	79.18	2.597	0.908	84.8	28.99	204.9	310.9	12.75	0.02	0	30.33
2026-09-23 16:00	7.274	7.53	82.7	2.319	0.841	93	21.7	154.1	311.2	11.8	0.03	0	30.33
2026-09-23 17:00	7.092	7.573	85	2.973	1.014	104.3	15.88	111.4	320.6	10.92	0.04	0	30.33
2026-09-23 18:00	6.443	7.106	89.1	2.352	0.365	216.3	2.4	14.05	328	8.68	0.02	1	30.32