日	気温℃ 平均	気温℃ 最高	気温℃ 最低	湿度％平均	湿度％最大	湿度％最小	最大風速 m/s	最大時風向	降水量 mm	平均地温 5cm	平均地温 15cm
2004年4月　FM草木（横川土場）
1	6.3	14.0	-1.4	53.6	101.3	13.7	1.40	SW	0.5	10.4	10.2
2	7.7	15.0	4.6	83.4	103.5	48.8	0.90	SSE	17.0	11.0	10.7
3	6.6	11.3	1.9	56.3	99.8	34.9	1.30	SW	0.0	10.0	10.1
4	1.0	3.8	-1.1	102.8	103.8	100.1	0.10	S	14.0	8.1	9.1
5	2.7	10.4	-1.8	91.7	104.1	44.1	1.10	SE	6.5	8.6	8.3
6	6.3	13.0	-0.2	83.8	102.6	56.2	0.90	SSW	0.0	10.0	9.5
7	9.6	15.9	4.3	80.2	101.2	49.3	1.30	S	0.0	11.8	10.8
8	5.5	10.1	-0.0	66.7	101.8	29.7	1.90	SSW	1.0	12.5	11.9
9	7.3	16.2	0.7	68.7	94.0	27.6	1.20	SSW	0.0	12.0	11.6
10	10.8	20.4	2.9	49.5	91.7	16.0	1.10	S	0.0	12.6	12.0
11	10.1	17.2	5.7	81.0	98.9	51.7	0.70	S	0.0	13.2	12.6
12	13.1	22.1	6.5	56.3	97.9	27.7	1.00	WSW	0.0	13.9	13.0
13	5.0	10.0	2.8	93.6	103.8	56.7	0.70	SW	0.5	11.5	12.3
14	6.8	10.5	3.1	100.9	103.8	85.7	0.40	SSW	1.5	10.4	10.7
15	8.3	15.4	1.1	75.8	104.0	33.9	1.00	WNW	0.0	11.7	11.1
16	10.4	18.9	4.4	67.1	90.7	32.7	0.90	S	0.0	13.4	12.5
17	12.5	19.8	6.6	49.2	82.0	29.3	1.40	S	0.0	13.7	13.1
18	10.1	18.3	2.1	71.4	99.7	40.0	1.20	SSW	0.0	13.8	13.1
19	10.6	14.8	7.8	89.9	103.2	59.2	1.10	NE	7.5	12.7	12.9
20	13.3	20.7	5.9	63.7	103.6	14.5	2.30	E	4.0	14.5	13.4
21	12.4	21.6	4.5	40.1	71.1	15.6	1.30	S	0.0	14.0	13.5
22	16.6	27.3	9.4	47.9	68.7	17.7	1.30	S	0.0	15.4	14.3
23	13.4	20.9	3.2	54.7	67.5	40.8	1.70	SW	0.0	15.3	14.8
24	3.9	9.2	-0.7	50.4	79.0	29.7	1.70	SE	0.0	13.1	13.4
25	5.6	12.5	-0.3	50.0	82.3	19.0	2.10	SSE	0.0	12.2	12.4
26	10.2	17.3	4.8	51.2	80.0	27.2	1.10	SSW	0.0	13.1	12.7
27	10.9	14.3	7.6	102.9	103.8	86.3	0.90	WSW	27.5	12.4	12.6
28	7.9	12.1	2.4	81.4	104.0	47.6	1.70	SSW	0.0	12.6	12.5
29	9.5	18.9	1.6	59.6	96.0	19.6	1.30	S	0.0	12.9	12.3
30	13.9	22.4	6.9	54.2	71.2	30.2	0.90	SSW	0.0	14.4	13.5
月合計									80.0
月平均	8.9	15.8	3.2	69.3	93.8	39.5	1.20		2.7	12.4	12.0
月最大	16.6	27.3	9.4	102.9	104.1	100.1	2.30		27.5	15.4	14.8
月最小	1.0	3.8	-1.8	40.1	67.5	13.7	0.10		0.0	8.1	8.3