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)
2026-07-09 23:00	8.43	10.28	54.32	1.862	0.748	276.1	0.31	-3.588	255.9	3.768	0.02	2	30.37
2026-07-10 01:00	7.106	8.05	54.16	0.947	0.442	275	0.314	-3.158	251.6	1.756	0.02	2	30.36
2026-07-10 02:00	6.868	7.685	56.7	1.078	0.421	268.7	0.391	-3.079	249.5	1.221	0.01	2	30.35
2026-07-10 03:00	6.726	7.501	55.83	1.96	0.88	263.9	0.35	-2.864	247.8	0.635	-0.01	2	30.35
2026-07-10 04:00	6.644	7.992	49.76	2.091	1.184	259.9	0.299	-3.091	244.3	0.349	-0.01	2	30.34
2026-07-10 05:00	6.347	7.784	46.97	2.107	1.138	262	0.078	-3.002	241.1	-0.14	-0.02	24	30.34
2026-07-10 06:00	6.585	9.53	47.75	2.025	0.84	257.2	12.36	62.33	249	1.735	-0	1	30.35
2026-07-10 07:00	9.54	14.73	36.96	4.296	0.818	169.2	58.68	267.4	264.3	10.98	0.02	0	30.36
2026-07-10 08:00	12.83	15.7	29.2	3.904	0.933	173.1	76.59	408.5	280.6	18.52	0.01	0	30.37
2026-07-10 09:00	15.69	17.09	24.86	4.181	1.205	29.16	76.86	442.9	302.9	23.71	0.02	0	30.38
2026-07-10 10:00	16.38	18.17	24.73	4.214	1.451	139.6	93.4	558.1	300.2	32.7	0.02	0	30.37
2026-07-10 11:00	14.7	17.11	28.76	5.602	1.241	249.2	38.94	240	333.4	23.34	0.03	0	30.38
2026-07-10 12:00	14.02	16.79	28.01	5.374	1.466	86.2	86.5	537.1	313.2	33.15	0.02	0	30.39
2026-07-10 13:00	16.33	18.05	25.91	6.386	1.816	92.4	87.1	546.1	324.7	32.34	0.02	0	30.39
2026-07-10 14:00	16.79	17.66	24.7	4.459	1.381	207.9	49.88	311.7	323.2	28.58	0.02	0	30.38
2026-07-10 15:00	16.42	17.72	23.02	4.345	1.444	83.4	49.72	302.5	336.8	23.57	0.02	0	30.38
2026-07-10 16:00	17.72	19.07	21.42	4.394	1.18	154.3	55.91	356.1	303.7	28.59	0.02	0	30.37
2026-07-10 17:00	17.61	19.11	16.1	3.675	0.857	205.2	32.13	205.8	297.5	20.43	0.02	0	30.36
2026-07-10 18:00	17.73	19.32	19.5	4.475	1.207	231.1	28.06	87.5	270.9	15.95	0.02	0	30.36
2026-07-10 19:00	14.77	17.81	26.79	3.463	0.9	236.1	3.489	30.46	262.1	10.37	0.02	0	30.36
2026-07-10 20:00	11.73	15.21	31.15	1.895	0.783	269.1	0.338	0.984	258.6	6.302	0.01	0	30.37
2026-07-10 21:00	10.95	11.9	30.76	1.813	0.897	271.1	0.049	-4.063	254.4	4.173	-0.01	2	30.38
2026-07-10 22:00	9.92	11.09	33.33	1.339	0.758	269.7	-0.035	-4.056	250.3	2.57	0	2	30.4
2026-07-10 23:00	9.08	10.39	34.22	1.715	0.628	280	0.062	-3.687	249.4	1.666	-0.01	2	30.4
2026-07-11 01:00	8.52	9.12	38.71	1.045	0.61	261.1	0.248	-3.341	248.9	0.179	-0	2	30.4
2026-07-11 02:00	8.1	8.99	44.68	1.029	0.528	258.7	0.121	-3.373	250.2	-0.08	-0.01	2	30.4
2026-07-11 03:00	7.923	8.6	44.4	1.013	0.456	259.5	0.166	-3.348	250.1	-0.514	-0.01	2	30.4
2026-07-11 04:00	7.629	8.37	46.43	1.16	0.588	262.2	0.162	-3.089	249.3	-0.728	-0.02	2	30.41
2026-07-11 05:00	7.092	7.755	47.17	1.192	0.621	264.9	0.118	-2.598	247.4	-1.28	-0.02	2	30.42
2026-07-11 06:00	7.009	8.1	46.58	1.209	0.481	267.3	9.04	42.17	246.5	-0.303	-0.01	1	30.43
2026-07-11 07:00	8.12	15.29	27.28	2.336	0.516	176.5	57.49	244.7	250	8.96	-0.01	0	30.44
2026-07-11 08:00	15.29	17.43	21.63	3.022	0.956	168.9	88.9	453.4	256.4	18.78	-0.01	0	30.45
2026-07-11 09:00	17.28	18.8	18.16	6.452	2.216	95.6	129.1	708.2	270.5	31.46	-0	0	30.46
2026-07-11 10:00	18.18	19.04	17.45	7.481	2.925	98	140.8	794.8	265.1	40.51	0	0	30.46
2026-07-11 11:00	18.19	19.42	17.99	5.815	2.257	91.7	142.5	809	268.8	45.1	0.01	0	30.47
2026-07-11 12:00	19.13	20.28	16.25	6.729	2.601	93	160.5	964	272.1	56.22	0.02	0	30.47
2026-07-11 13:00	19.35	20.39	15.41	6.697	2.418	83.3	163.1	972	275.3	58.61	0.02	0	30.46
2026-07-11 14:00	20.31	21.18	14.17	7.644	2.298	88.4	155.7	935	274.2	59.32	0.03	0	30.46
2026-07-11 15:00	20.65	21.79	12.45	5.815	2.271	89.4	142.9	876	271.3	57.8	0.02	0	30.45
2026-07-11 16:00	21.06	21.83	13.47	6.305	2.186	91	123	766.9	268.4	52.04	0.02	0	30.44
2026-07-11 17:00	20.32	21.68	17.55	5.325	2.103	93.9	69.58	405.2	275.8	36.11	0.03	0	30.43
2026-07-11 18:00	19.61	20.35	19.25	4.9	1.693	105.8	30.82	130.4	282.7	23.49	0.03	0	30.43
2026-07-11 19:00	18.17	19.62	19.15	3.757	0.821	101.6	10.04	56.09	278.4	17.39	0.03	0	30.44
2026-07-11 20:00	14.18	18.36	27.22	1.682	0.53	273.2	1.02	2.282	273.7	11.67	0.03	0	30.44
2026-07-11 21:00	12.88	14.21	29.19	1.274	0.611	266.6	0.055	-4.21	282.2	9.4	0.04	0	30.45
2026-07-11 22:00	12.42	13.39	34.45	1.307	0.578	277.7	0.394	-2.426	299.7	8.77	0.05	0	30.47
2026-07-11 23:00	12.25	13.53	33.77	2.466	0.742	279.1	0.184	-2.677	296.5	8.75	0.05	0	30.48
2026-07-12 01:00	10.28	11.54	44.19	1.731	0.854	275	0.036	-3.712	265.6	4.811	0.04	2	30.49
2026-07-12 02:00	9.56	11.07	50.05	1.944	0.894	261.7	0.155	-3.38	263.5	3.998	0.04	2	30.49
2026-07-12 03:00	9.19	10.85	53.23	2.123	1.078	250	0.043	-3.593	262.3	3.518	0.04	2	30.49
2026-07-12 04:00	9.15	11.35	48.95	2.548	1.188	233.4	0.496	-3.112	262.2	3.308	0.05	1	30.49
2026-07-12 05:00	8.64	10.78	57.25	2.401	1.015	249.6	-0.077	-3.171	260	2.552	0.04	2	30.49
2026-07-12 06:00	8.59	11.33	49.6	1.192	0.606	258	9.89	52.06	259.4	3.123	0.03	1	30.5
2026-07-12 07:00	11.33	14.94	43.51	3.365	0.786	103.9	57.87	255	263	12.27	0.03	0	30.5
2026-07-12 08:00	14.97	17.11	36.52	3.659	1.085	119.6	89.4	462.5	267.9	21.92	0.03	0	30.51
2026-07-12 09:00	16.49	17.99	35.02	3.806	1.312	62.21	117.2	648.5	273.5	32.86	0.03	0	30.51
2026-07-12 10:00	16.97	18.56	25.87	4.41	1.37	70.75	93.7	553.7	289.1	36.05	0.03	0	30.5
2026-07-12 11:00	18.03	20.51	22.42	6.631	1.747	87.7	151.9	922	300.8	51.84	0.04	0	30.49
2026-07-12 12:00	19	20.89	21.66	6.435	2.119	87.8	136.7	843	305.4	55.73	0.04	0	30.49
2026-07-12 13:00	19.77	21.75	20.98	6.582	1.997	85.4	106.5	654.5	325	54.84	0.04	0	30.47
2026-07-12 14:00	19.24	19.93	23.91	5.455	1.635	103.6	30.89	184.4	345.4	29.62	0.03	0	30.47
2026-07-12 15:00	18.91	19.93	22.69	8	1.36	92.8	38.08	224.9	347.8	28.1	0.03	0	30.46
2026-07-12 16:00	18.84	20.59	24.02	4.492	1.143	64.98	77.75	454.2	329.7	31.98	0.02	0	30.46
2026-07-12 17:00	20.17	21.01	19.32	4.655	1.182	235.8	73.37	442.9	306	34.77	0.02	0	30.44
2026-07-12 18:00	18.56	20.39	29.22	2.695	0.977	236.2	20.86	118.1	317.3	23.7	0.01	0	30.44
2026-07-12 19:00	16.52	18.58	36.2	1.895	0.653	243.4	7.458	42.69	323.2	18.18	0.02	0	30.44
2026-07-12 20:00	15.49	17.65	31.78	2.956	0.648	259.4	1.051	1.886	341.4	15.87	0.02	0	30.45
2026-07-12 21:00	14.66	17.15	36.12	3.103	0.787	288.7	-0.228	-3.207	327.4	13.53	0.02	0	30.46
2026-07-12 22:00	12.66	14.69	38.66	1.715	0.642	267.4	-0.304	-4.054	297	9.85	0.03	0	30.47
2026-07-12 23:00	12.56	13.52	38.49	2.189	0.879	254.5	0.268	-2.947	293.3	8.73	0.03	0	30.48
2026-07-13 01:00	11.01	13.17	52.63	1.797	1.006	242.2	-0.369	-4.364	275.4	6.093	0.02	1	30.49
2026-07-13 02:00	10.85	11.97	53.86	3.283	1.168	255.7	0.349	-3.29	274.1	6.305	0.01	1	30.49
2026-07-13 03:00	10.68	11.56	61.81	2.94	1.229	236	0.187	-3.003	287.9	7.039	-0	1	30.49
2026-07-13 04:00	9.51	10.81	66.74	3.512	1.292	241.7	0.09	-3.712	265.2	5.813	-0.02	1	30.49
2026-07-13 05:00	7.797	9.6	69.68	2.189	0.963	230.1	0.078	-3.244	260.9	3.627	-0.01	2	30.49
2026-07-13 06:00	7.867	9.94	66.11	1.895	0.712	216.5	9.5	48.94	262.1	4.265	-0.01	1	30.5
2026-07-13 07:00	9.91	12.88	52.24	3.675	0.947	137.5	55.9	243.5	264.3	12.49	-0.01	0	30.5
2026-07-13 08:00	12.87	14.9	45.29	3.936	1.334	140.1	88.1	453	270.9	21.5	-0.01	0	30.5
2026-07-13 09:00	14.58	16.52	41.66	4.165	1.437	130.3	115.5	635.5	275.9	32.39	-0	0	30.5
2026-07-13 10:00	16.41	18.67	34.97	4.361	1.348	219.8	130.9	767.9	294.2	44.06	0.01	0	30.49