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)
2026-03-06 04:00	-9.64	-9.12	92.4	2.907	0.776	77.55	-0.013	-0.294	274.8	-9.54	1.08	298	0	29.79
2026-03-06 05:00	-9.89	-9.59	92.5	4.018	0.95	88.4	-0.033	-0.057	273.3	-10.21	1.11	300	0	29.78
2026-03-06 06:00	-10.13	-9.88	90.8	3.267	0.606	92.4	-0.03	-0.042	272.1	-10.58	1.14	301	0	29.78
2026-03-06 07:00	-10.65	-10.06	92.7	3.642	0.935	63.75	2.99	1.327	271	-11.35	1.15	302	0	29.79
2026-03-06 08:00	-10.75	-10.58	92.8	5.194	0.831	86.1	47.75	20.9	271	-11.15	1.15	302	0	29.79
2026-03-06 09:00	-10.86	-10.65	92.2	3.626	1.063	108.3	96	42.91	273.2	-11.01	1.16	303	0	29.8
2026-03-06 10:00	-10.86	-10.27	92.6	4.802	1.41	90.7	215.1	95.3	277.8	-10.41	1.16	304	0	29.81
2026-03-06 11:00	-10.4	-9.75	92.2	4.214	1.55	92.1	345.1	153.2	287.9	-8.99	1.17	305	0	29.82
2026-03-06 12:00	-10.27	-9.85	92.8	4.41	1.396	95.7	285	129.6	288	-9.73	1.19	306	0	29.84
2026-03-06 13:00	-10.23	-9.71	91	4.034	1.321	72.9	362.4	161.2	290.5	-9.18	1.21	307	0	29.85
2026-03-06 14:00	-9.98	-8.71	93.2	5.472	1.214	232.2	472	213.9	298.7	-7.554	1.21	309	0	29.86
2026-03-06 15:00	-9.54	-8.75	92.6	4.328	1.432	84.8	470.4	211	301.4	-7.408	1.21	310	0	29.88
2026-03-06 16:00	-9.67	-8.87	92.8	3.577	1.562	88.2	338.4	150.6	299.1	-8.37	1.22	311	0	29.9
2026-03-06 17:00	-9.92	-9.58	93	2.581	1.236	84.6	118.3	51.28	283.2	-10.03	1.22	312	0	29.92
2026-03-06 18:00	-10.37	-9.65	92.8	3.446	0.912	72.89	50.19	21.21	277.5	-10.81	1.24	313	0	29.93
2026-03-06 19:00	-10.54	-10.33	93.1	2.319	0.546	98.6	0.903	0.472	271	-11.7	1.26	313	0	29.96
2026-03-06 20:00	-10.55	-10.44	93	2.156	0.595	86.5	-0.145	-0.119	269.4	-12.09	1.28	313	0	29.98
2026-03-06 21:00	-12.2	-10.5	90.5	2.515	0.744	87.5	-0.333	0.049	268.5	-12.65	1.28	313	0	29.99
2026-03-06 22:00	-14.33	-12.18	90.2	1.682	0.804	284.7	-0.955	-0.167	259.9	-21.88	1.28	313	0	30
2026-03-06 23:00	-15.04	-14.32	90.5	1.16	0.633	283.9	-0.804	-0.696	252.2	-26.11	1.27	313	0	30.01
2026-03-07 01:00	-16.05	-15.61	89.6	1.209	0.548	270.5	-0.711	-1.058	246.2	-29.73	1.26	313	0	30.02
2026-03-07 02:00	-16.34	-15.77	90.2	1.045	0.522	270.4	-0.621	-1.119	245.2	-29.77	1.26	313	0	30.03
2026-03-07 03:00	-16.55	-15.6	89.4	1.143	0.523	261.5	-0.885	-1.113	244.8	-30.85	1.26	313	0	30.04
2026-03-07 04:00	-16.79	-16.13	89.9	1.029	0.492	271.3	-0.64	-1.252	243.2	-31.25	1.25	313	0	30.04
2026-03-07 05:00	-16.59	-15.96	89.8	1.241	0.557	269.9	-0.741	-1.181	244.1	-31.4	1.25	313	0	30.05
2026-03-07 06:00	-16.96	-16.27	89.8	1.421	0.547	269.6	-0.734	-1.068	243.4	-31.71	1.25	313	0	30.06
2026-03-07 07:00	-17.11	-16.52	89.4	1.241	0.601	269.6	4.197	1.246	242.3	-31.75	1.24	313	0	30.06
2026-03-07 08:00	-17.1	-16.13	90.9	1.16	0.457	252.2	41.86	19.83	243	-32.36	1.25	313	0	30.08
2026-03-07 09:00	-16.09	-9.58	93.3	1.405	0.447	85.2	371.3	156.3	270.6	-20.16	1.23	313	0	30.1
2026-03-07 10:00	-9.76	-7.866	92.4	2.042	0.74	109.9	527.6	201.6	306.4	-11.82	1.23	313	0	30.11
2026-03-07 11:00	-8.12	-6.712	89.2	2.581	0.742	78.1	645.8	221.8	318.1	-7.365	1.23	313	1	30.12
2026-03-07 12:00	-7.823	-6.093	85.2	3.136	1.34	95.1	701.7	259.9	318.8	-5.206	1.23	313	5	30.14
2026-03-07 13:00	-7.54	-5.743	81.4	3.642	1.503	113.5	707.6	276.1	314.1	-5.413	1.22	313	2	30.14
2026-03-07 14:00	-5.911	-4.448	72.65	3.25	1.081	186.7	644.6	272	312.2	-5.485	1.2	313	5	30.14
2026-03-07 15:00	-5.489	-4.039	49.93	3.773	1.178	92.9	528.2	258	313.7	-6.293	1.2	313	3	30.14
2026-03-07 16:00	-4.533	-3.577	46.45	3.463	1.364	173.5	289.4	223.9	303.1	-8.68	1.2	313	2	30.13
2026-03-07 17:00	-6.742	-3.436	72.88	4.737	1.312	81.3	113.9	111.9	294.4	-11.95	1.2	313	2	30.14
2026-03-07 18:00	-9.24	-6.712	82.7	1.976	0.79	271.3	16.06	8.26	279.4	-18.1	1.2	313	1	30.16
2026-03-07 19:00	-10.38	-9.21	86	1.454	0.756	277.6	0.827	-0.167	270.4	-20.82	1.2	313	1	30.16
2026-03-07 20:00	-11.62	-10.38	87.9	1.519	0.485	267	-0.469	-0.945	264.7	-22.65	1.2	313	0	30.17
2026-03-07 21:00	-11.87	-10.64	84.4	1.78	0.905	275.9	-0.177	-0.489	265.1	-21.87	1.2	313	0	30.19
2026-03-07 22:00	-12	-11.14	86.6	1.388	0.619	276.2	-0.303	-0.861	262.5	-22.79	1.2	313	0	30.19
2026-03-07 23:00	-11.82	-11.28	85.7	1.225	0.601	272.4	-0.252	-0.807	262	-22.86	1.2	313	0	30.19
2026-03-08 01:00	-12.25	-11.94	78.48	1.454	0.738	262.9	-0.237	-0.798	260.2	-23.62	1.19	313	0	30.18
2026-03-08 02:00	-12.4	-11.58	78.67	1.666	0.667	269.1	-0.142	-0.796	260.2	-23.31	1.2	313	0	30.18
2026-03-08 04:00	-12.23	-11.37	81.8	1.274	0.767	258.1	-0.243	-0.803	261.4	-23.47	1.2	313	0	30.17
2026-03-08 05:00	-11.38	-10.89	83.7	1.356	0.764	256.1	-0.242	-0.754	263.4	-23.32	1.2	313	0	30.16
2026-03-08 06:00	-11.37	-10.62	86.2	1.372	0.583	260.1	-0.312	-0.921	264.3	-23.15	1.2	313	0	30.16
2026-03-08 07:00	-10.99	-10.1	88.1	1.323	0.76	255.4	4.511	1.962	266.3	-22.76	1.19	313	0	30.16
2026-03-08 08:00	-10.21	-8.18	91.4	1.339	0.635	254.7	43.28	25.48	271.2	-22.22	1.19	313	0	30.16
2026-03-08 09:00	-8.15	-1.326	56.03	2.434	0.706	117	357.5	189.3	299.8	-12.99	1.19	313	0	30.17
2026-03-08 10:00	-1.956	-0.482	56.82	3.185	1.621	99.9	505.3	258.3	314.6	-6.027	1.18	313	0	30.17
2026-03-08 11:00	-0.862	0.996	54.37	3.299	1.151	78.17	605	343.3	309.8	-2.57	1.17	314	0	30.17
2026-03-08 12:00	0.758	1.984	50.64	4.23	1.888	240	659.1	830	196.2	-2.534	1.18	314	0	30.16
2026-03-08 13:00	1.882	3.546	49.84	4.132	1.914	229.8	662	848	197.6	-2.427	1.16	314	0	30.15
2026-03-08 14:00	2.053	3.813	50.53	4.704	1.777	187.7	602.8	800	199.5	-2.445	1.15	314	0	30.13
2026-03-08 15:00	0.729	3.319	56.92	5.129	2.238	81.5	497.4	690.9	199.5	-2.814	1.14	314	0	30.13
2026-03-08 16:00	0.291	0.983	58.26	4.72	1.653	75.88	282.4	474.7	197	-3.503	1.14	314	0	30.13
2026-03-08 17:00	-0.987	0.422	65.17	4.132	1.354	73.94	106.4	193.9	195.9	-5.135	1.14	314	0	30.12
2026-03-08 18:00	-3.054	-1.014	73.55	1.829	0.795	266.7	15.69	14.16	194.2	-7.643	1.14	313	0	30.13
2026-03-08 19:00	-4.56	-2.942	76.84	1.225	0.666	263.9	1.372	-2.322	191.4	-11.76	1.14	313	0	30.12
2026-03-08 20:00	-4.744	-4.408	75.95	1.633	1.002	261.7	0.029	-3.028	191.4	-14.32	1.14	313	0	30.13
2026-03-08 21:00	-4.969	-4.576	74.81	1.797	1.121	262.6	-0.128	-2.942	189.9	-15.69	1.13	313	0	30.13
2026-03-08 22:00	-5.671	-4.477	75.73	2.009	1.216	244.2	-0.307	-3.217	187.9	-16.36	1.14	312	0	30.13
2026-03-08 23:00	-5.756	-4.095	74.66	1.797	0.979	244.8	-0.224	-3.111	186.1	-17.33	1.14	312	0	30.13
2026-03-09 01:00	-6.993	-4.234	71.88	3.43	0.934	230.7	-0.49	-3.204	184.9	-18.28	1.14	312	0	30.12
2026-03-09 02:00	-7.022	-4.995	79.32	2.515	1.019	243.1	-0.376	-3.335	184.4	-18.38	1.14	312	0	30.13
2026-03-09 03:00	-7.345	-6.541	78.28	1.568	0.88	247.5	-0.299	-3.12	183.5	-19.06	1.13	312	0	30.12
2026-03-09 04:00	-7.839	-6.515	79.43	2.45	0.938	233.5	-0.349	-2.894	182.4	-19.51	1.13	312	0	30.11
2026-03-09 05:00	-7.74	-6.838	77.02	1.911	0.919	234.5	-0.205	-2.955	182.4	-19.82	1.14	313	0	30.11
2026-03-09 06:00	-7.61	-6.993	77.82	1.519	0.863	243.9	-0.332	-3.124	182.2	-20.04	1.13	313	0	30.11
2026-03-09 07:00	-7.724	-6.755	76.44	1.764	1.011	228.1	4.669	2.888	182	-19.84	1.13	313	0	30.11
2026-03-09 08:00	-7.19	-4.264	55.41	3.43	0.946	216.5	47.47	53.93	181.1	-19.35	1.14	313	0	30.12
2026-03-09 09:00	-4.194	1.348	31.19	4.867	1.113	182.1	351.6	403.4	179.2	-11.21	1.12	314	0	30.12
2026-03-09 10:00	1.322	2.531	20.45	3.659	1.275	213.8	488.9	597.9	177.7	-5.532	1.13	314	1	30.12
2026-03-09 11:00	2.195	2.996	23.19	5.357	1.584	239.5	588.1	748.8	178.3	-3.575	1.12	314	0	30.12
2026-03-09 12:00	2.657	3.263	23.12	4.345	1.6	248.2	642.8	837	181.2	-3.325	1.12	314	0	30.12
2026-03-09 13:00	3.009	4.294	22.67	4.263	1.49	243.5	647.1	856	184.9	-3.146	1.12	314	0	30.12
2026-03-09 14:00	3.701	4.895	23.64	5.308	1.698	254.5	593.3	810	188.9	-3.267	1.1	314	0	30.1
2026-03-09 15:00	4.107	5.095	23.81	5.39	1.637	234.6	490.1	699.8	189.8	-3.529	1.1	314	0	30.09