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)	Hourly Precipitation (mm)	Barometer (inHg)
2025-05-02 23:00	-2.381	-1.887	60.63	1.519	0.802	267.8	0.284	-3.133	202.4	-9.8	1.07	558	0	30.2
2025-05-03 00:00	-0.296	0.742	73.19	2.091	0.934	228.6	0.068	-3.154	231.9	-5.379	1.02	488	0	30.12
2025-05-03 01:00	-2.731	-2.213	63.75	1.699	1.044	251.9	0.054	-3.369	200.1	-10.75	1.06	589	0	30.21
2025-05-03 02:00	-2.915	-2.154	59.74	1.993	1.21	253.6	0.097	-3.211	199.6	-10.92	1.07	601	0	30.2
2025-05-03 03:00	-3.179	-2.256	67.78	1.862	1.126	260.4	-0.092	-3.541	197	-11.24	1.07	610	0	30.2
2025-05-03 04:00	-3.66	-2.787	69.45	2.058	1.078	253.7	-0.046	-3.505	194.4	-11.57	1.06	541	0	30.2
2025-05-03 05:00	-3.436	-1.831	61.61	3.12	1.298	269.1	0.183	-2.99	192.3	-11.48	1.06	534	0	30.2
2025-05-03 06:00	-3.449	-1.663	61.16	3.479	1.239	269.7	13.53	15.84	191.6	-11.53	1.07	532	0	30.2
2025-05-03 07:00	-2.731	0.913	53.84	3.397	0.685	101.1	180.3	234.6	193.6	-8.36	1.06	522	0	30.2
2025-05-03 08:00	0.785	4.825	36.16	2.94	1.015	127	319.1	465.1	198.8	-3.459	1.06	491	0	30.2
2025-05-03 09:00	4.518	5.939	25.33	3.904	1.292	127.1	421.2	683.1	202.5	-2.394	1.06	474	0	30.2
2025-05-03 10:00	5.25	6.598	22.93	3.495	1.473	150.2	491.8	868	204.9	-2.344	1.06	473	0	30.2
2025-05-03 11:00	5.981	6.993	22.29	4.459	1.609	77.11	533.1	999	209.9	-2.439	1.04	486	0	30.2
2025-05-03 12:00	6.937	8.61	21.41	3.642	1.261	216.4	560.9	1079	217.6	-2.569	1.03	490	0	30.19
2025-05-03 13:00	7.642	8.7	21.1	4.034	1.376	223.2	412.5	790.8	237.7	-2.713	1.02	487	0	30.18
2025-05-03 14:00	7.135	8.44	29.93	4.312	1.401	230.6	265	491.8	260	-2.482	1.03	484	0	30.17
2025-05-03 15:00	6.192	7.148	35.87	4.475	1.779	243.5	226.2	402.4	272.7	-2.256	1.03	481	0	30.17
2025-05-03 16:00	5.797	6.262	38.71	4.312	1.881	237.6	214	392.5	257.5	-2.066	1.02	479	0	30.16
2025-05-03 17:00	5.741	6.094	34.57	3.724	1.474	241.8	158.8	295.6	253.3	-2.072	1.02	477	0	30.15
2025-05-03 18:00	4.502	6.024	45.08	4.769	0.954	239.6	60.99	107.1	278.2	-2.083	1.02	475	0	30.15
2025-05-03 19:00	2.614	4.614	62.08	6.354	0.954	20.01	14.28	23.75	282.6	-1.836	1.02	474	0	30.15
2025-05-03 20:00	1.984	3.009	55.04	3.348	0.842	258.4	-0.016	-1.348	284.9	-1.709	1.02	474	0	30.15
2025-05-03 21:00	1.42	2.729	59.72	2.842	1.229	246	0.023	-2.904	244.8	-3.014	1.02	474	0	30.14
2025-05-03 22:00	1.391	2.083	64.91	3.103	1.32	245.8	0.034	-2.433	253.6	-3.18	1.02	475	0	30.14
2025-05-03 23:00	0.505	1.49	68.65	2.434	1.015	240.4	-0.003	-2.883	240.2	-4.18	1.02	479	0	30.14
2025-05-04 00:00	-2.352	-1.633	96.5	3.871	1.246	261.3	0.11	-0.136	307.4	-2.33	1.07	471	3	29.96
2025-05-04 01:00	-1.409	-0.255	78.31	1.699	0.834	252.4	0.044	-3.426	221.3	-6.511	1.02	503	0	30.11
2025-05-04 02:00	-1.537	-0.677	76.87	2.27	1.156	240.5	0.242	-3.196	212.4	-7.407	1.01	518	0	30.08
2025-05-04 03:00	-2.352	-1.396	75.43	1.846	0.873	258.3	0.129	-3.548	209.4	-8.39	1.01	528	0	30.07
2025-05-04 04:00	-2.928	-1.748	80.1	1.552	0.771	262.5	0.078	-3.381	207.9	-8.98	1.02	536	0	30.06
2025-05-04 05:00	-2.774	-2.312	78.93	1.764	0.986	258.7	0.306	-2.754	211.3	-8.99	1.01	540	0	30.06
2025-05-04 06:00	-2.408	-0.763	73.78	2.385	1.117	228.8	18.5	29.4	249.6	-6.879	1.02	523	0	30.06
2025-05-04 07:00	-0.902	0.897	67.69	2.809	0.804	244.6	81.2	130	231.3	-5.75	1.01	503	0	30.05
2025-05-04 08:00	0.884	2.04	64.32	4.181	1.148	147	205.1	336.1	242.4	-2.05	1.01	474	0	30.05
2025-05-04 09:00	1.941	3.234	63.05	5.112	1.443	193.6	316	542	259.2	-1.223	1.01	469	0	30.05
2025-05-04 10:00	2.179	3.348	65.1	4.9	1.462	175.8	274.3	478.5	291.5	-1.216	1.02	474	0	30.04
2025-05-04 11:00	2.574	3.8	55.27	3.757	1.41	244.7	308	548.4	287.6	-1.303	1.01	476	0	30.02
2025-05-04 12:00	-0.691	3.418	70.39	7.824	1.406	47.46	396.3	637.3	277.2	-0.927	1	476	0	30.02
2025-05-04 13:00	2.614	4.951	52.43	5.031	1.321	59.68	416.8	741.2	266.3	-1.602	0.98	473	0	29.99
2025-05-04 14:00	1.025	4.32	69.56	7.677	1.847	43.84	173.6	290	293.1	-1.254	0.99	470	0	29.99
2025-05-04 15:00	-1.043	1.77	85.8	4.802	1.675	260.7	194	208.8	300.4	-0.942	0.98	469	0	29.99
2025-05-04 16:00	0.109	2.403	75.55	3.757	1.31	252.7	373.8	422.4	255.6	-1.152	0.98	467	0	29.96
2025-05-04 17:00	0.053	2.208	86.8	6.06	1.678	34.77	134.9	189.4	277.4	-2.001	0.98	466	1	29.95
2025-05-04 18:00	-0.733	0.04	94.8	2.581	0.39	264.4	41.43	19.43	315.3	-1.125	1	468	2	29.96
2025-05-04 19:00	-1.142	-0.552	94.1	2.466	0.315	243.9	16.17	5.218	314.6	-1.52	1.02	468	1	29.96
2025-05-04 20:00	-1.537	-1.113	95.3	1.993	0.167	235.9	0.362	-0.325	310.8	-1.898	1.04	469	1	29.96
2025-05-04 21:00	-1.804	-1.508	96.1	1.258	0.102	222.8	0.008	-0.587	308.5	-3.141	1.04	469	0	29.96
2025-05-04 22:00	-1.9	-1.689	95.3	1.699	0.352	256	0.127	-0.614	307.4	-3.193	1.05	468	0	29.96
2025-05-04 23:00	-1.775	-1.607	95.9	1.535	0.497	251.7	0.203	-0.539	308	-2.56	1.06	469	0	29.96
2025-05-05 00:00	-6.403	-4.995	85.8	3.005	1.156	267.1	0.173	-3.196	282.1	-13.28	1.05	477	0	29.98
2025-05-05 01:00	-2.843	-2.296	95	4.034	1.618	251.1	0.179	-0.156	305	-3.253	1.09	472	0	29.97
2025-05-05 02:00	-3.067	-2.803	92.6	3.512	1.095	243.2	0.236	-0.504	303.3	-4.645	1.09	472	0	29.96
2025-05-05 03:00	-3.577	-2.971	94.7	4.051	1.283	230.1	0.003	-1.152	301.1	-8.63	1.09	473	0	29.93
2025-05-05 04:00	-3.772	-3.196	91.3	3.022	1.321	222.5	0.063	-1.096	300.1	-9.66	1.09	473	0	29.93
2025-05-05 05:00	-3.884	-3.393	92.4	3.446	1.188	251.6	0.133	-1.103	299.1	-8.54	1.08	474	0	29.94
2025-05-05 06:00	-3.941	-3.067	88	2.875	1.183	236.1	26.93	7.446	299.5	-8.06	1.08	474	0	29.94
2025-05-05 07:00	-3.097	-1.62	86.4	4.377	1.638	204.6	186.5	64.83	311	-8.44	1.08	474	0	29.93
2025-05-05 08:00	-1.748	-0.352	79.03	3.316	0.902	193	264.7	84.9	315.3	-5.877	1.07	474	0	29.93
2025-05-05 09:00	-1.313	-0.255	82.8	3.218	0.771	201.1	249.6	79.89	315.1	-3.509	1.08	474	0	29.94
2025-05-05 10:00	-2.899	-1.297	79.45	4.067	1.099	272.5	231.1	82.3	315.9	-2.993	1.07	475	2	29.96
2025-05-05 11:00	-1.593	1.223	62.94	3.577	1.11	62.92	523.8	197.8	315.7	-1.939	1.07	475	0	29.95
2025-05-05 12:00	0.63	2.291	58.99	3.969	1.325	248.9	778.9	516.6	247.8	-1.351	1.05	474	0	29.94
2025-05-05 13:00	1.546	3.151	49.81	3.887	1.202	48.56	710.8	806	239.9	-1.742	1.03	473	0	29.93
2025-05-05 14:00	-0.944	2.857	71.57	6.027	1.451	353.1	410.8	570.4	270	-2.152	1.03	472	0	29.92
2025-05-05 15:00	-1.03	0.053	79.83	4.671	1.162	210.9	287.9	380.8	286.2	-1.619	1.02	472	0	29.93
2025-05-05 16:00	-2.408	-0.958	89.3	3.479	1.011	211.6	153.5	173.3	304.2	-1.879	1.03	473	0	29.93
2025-05-05 17:00	-3.997	-2.394	90.7	5.014	1.386	242.5	66.03	67.61	302.7	-3.654	1.05	474	3	29.95
2025-05-05 18:00	-4.01	-3.69	88.3	3.789	1.538	250.3	67.55	55.93	298.7	-7.948	1.06	474	0	29.95
2025-05-05 19:00	-4.165	-3.673	84.7	3.757	1.605	253.8	26.72	21.42	295.3	-10.09	1.05	474	0	29.95
2025-05-05 20:00	-5.038	-4.138	86.9	3.103	1.438	217.3	0.611	-3.856	290.3	-12.54	1.05	474	0	29.96
2025-05-05 21:00	-5.025	-3.422	81.2	3.904	1.502	218.3	0.263	-3.578	291.4	-10.5	1.05	475	0	29.98
2025-05-05 22:00	-5.938	-3.927	89.5	2.385	0.983	236.2	-0.274	-4.45	288.9	-13.26	1.05	475	0	29.98
2025-05-05 23:00	-6.403	-5.895	90.8	1.601	0.762	270.9	-0.196	-4.335	281.7	-15.44	1.05	476	0	29.97
2025-05-06 01:00	-5.15	-4.165	84.9	3.544	1.369	256.1	0.317	-2.839	289.2	-10.06	1.06	477	0	29.97
2025-05-06 02:00	-5.388	-4.194	85	2.254	0.993	245.8	0.033	-3.644	288.3	-11.7	1.05	478	0	29.96
2025-05-06 03:00	-5.292	-4.616	88.1	1.813	0.94	259.7	0.18	-2.375	288.5	-9.51	1.05	479	0	29.97
2025-05-06 04:00	-4.926	-3.927	89.9	1.813	0.626	243.4	0.091	-2.315	291.3	-8.42	1.05	481	0	29.96
2025-05-06 05:00	-4.883	-3.884	93.3	4.443	0.946	107.2	0.287	-1.596	291.7	-7.4	1.05	482	0	29.96
2025-05-06 06:00	-4.603	-4.29	96.4	2.074	0.606	83.9	13.13	12.36	293.9	-5.933	1.05	483	0	29.97
2025-05-06 07:00	-4.333	-3.828	95.3	2.679	0.91	79.96	63.9	63.29	298	-4.275	1.05	483	0	29.97