The new moon is never called full. Was that a typo? The yearly Passover was always on a full moon, two weeks after the new moon of Nissan. They did make adjustments to their calendar, to compensate for the shifts and differences.
[TABLE="class: Grid1, width: 1"]
[TR]
[TH]
Hebrew[/TH]
[TH]
English[/TH]
[TH]
Number[/TH]
[TH]
Length[/TH]
[TH]
Civil Equivalent[/TH]
[/TR]
[TR]
[TD="class: Hebrew, align: right"]
[/TD]
[TD]
Nissan[/TD]
[TD]
1[/TD]
[TD]
30 days[/TD]
[TD]
March-April[/TD]
[/TR]
[TR]
[TD="class: Hebrew, align: right"]
[/TD]
[TD]
Iyar[/TD]
[TD]
2[/TD]
[TD]
29 days[/TD]
[TD]
April-May[/TD]
[/TR]
[TR]
[TD="class: Hebrew, align: right"]
[/TD]
[TD]
Sivan[/TD]
[TD]
3[/TD]
[TD]
30 days[/TD]
[TD]
May-June[/TD]
[/TR]
[TR]
[TD="class: Hebrew, align: right"]
[/TD]
[TD]
Tammuz[/TD]
[TD]
4[/TD]
[TD]
29 days[/TD]
[TD]
June-July[/TD]
[/TR]
[TR]
[TD="class: Hebrew, align: right"]
[/TD]
[TD]
Av[/TD]
[TD]
5[/TD]
[TD]
30 days[/TD]
[TD]
July-August[/TD]
[/TR]
[TR]
[TD="class: Hebrew, align: right"]
[/TD]
[TD]
Elul[/TD]
[TD]
6[/TD]
[TD]
29 days[/TD]
[TD]
August-September[/TD]
[/TR]
[TR]
[TD="class: Hebrew, align: right"]
[/TD]
[TD]
Tishri[/TD]
[TD]
7[/TD]
[TD]
30 days[/TD]
[TD]
September-October[/TD]
[/TR]
[TR]
[TD="class: Hebrew, align: right"]
[/TD]
[TD]
Cheshvan[/TD]
[TD]
8[/TD]
[TD]
29 or 30 days[/TD]
[TD]
October-November[/TD]
[/TR]
[TR]
[TD="class: Hebrew, align: right"]
[/TD]
[TD]
Kislev[/TD]
[TD]
9[/TD]
[TD]
30 or 29 days[/TD]
[TD]
November-December[/TD]
[/TR]
[TR]
[TD="class: Hebrew, align: right"]
[/TD]
[TD]
Tevet[/TD]
[TD]
10[/TD]
[TD]
29 days[/TD]
[TD]
December-January[/TD]
[/TR]
[TR]
[TD="class: Hebrew, align: right"]
[/TD]
[TD]
Shevat[/TD]
[TD]
11[/TD]
[TD]
30 days[/TD]
[TD]
January-February[/TD]
[/TR]
[TR]
[TD="class: Hebrew, align: right"]
[/TD]
[TD]
Adar I (leap years only)[/TD]
[TD]
12[/TD]
[TD]
30 days[/TD]
[TD]
February-March[/TD]
[/TR]
[TR]
[TD="class: Hebrew, align: right"]
[/TD]
[TD]
Adar
(called Adar Beit in leap years)[/TD]
[TD]
12
(13 in leap years)[/TD]
[TD]
29 days[/TD]
[TD]
February-March[/TD]
[/TR]
[/TABLE]
Calendar from Judaism 101: Jewish Calendar